Practice Test


Q1) Which of the following has maximum boiling point? Show Answer


Q2) When calcium benzoate is distilled with calcium formate, the product is Show Answer


Q3) The reaction of aromatic acyl chloride and phenol in the presence of a base NaOH or pyridine is called Show Answer


Q4) Benzamide on heating with bromine and caustic alkali gives Show Answer


Q5) Acetyl chloride on treating with ammonia gives Show Answer


Q6) Which of the following does not give silver mirror test? Show Answer


Q7) Ammonium acetate on heating gives Show Answer


Q8) Distillation of sodium salt of benzoic acid with soda lime gives. Show Answer


Q9) Which of the following is the weakest acid? Show Answer


Q10) Methanoic acid is manufactured by the reaction of carbon monoxide and Show Answer


Q11) Primary amides reacts with nitrous acid to give Show Answer


Q12) When acetamide is treated with nitrous acid, it gives Show Answer


Q13) When benzamide is heated with thionyl chloride, it gives Show Answer


Q14) Ethyl benzoate reacts with ammonia to give Show Answer


Q15) Which of the following functional derivatives of carboxylic acid is least soluble in water? Show Answer


Q16) Decarboxylation of sodium benzoate on heating with soda lime gives Show Answer


Q17) Acetophenone on reduction with Zn | Hg and HCl gives Show Answer


Q18) Which of the following has highest boiling point? Show Answer


Q19) Salicylic acid on heating with soda lime (CaO + NaOH) gives Show Answer


Q20) Ammonia reacts with acetic anhydride to give Show Answer


Q21) Which acid is present in vinegar? Show Answer


Q22) Sodium acetate and acetyl chloride react to give Show Answer


Q23) When calcium formate is distilled with calcium acetate, the product is: Show Answer


Q24) Carboxylic acids are reduced by red P and HI to Show Answer


Q25) Calcium acetate on distillation gives Show Answer


Q26) Acetamide is Show Answer


Q27) Formic acid and acetic acid may be distinguished by the reaction with Show Answer


Q28) The weakest acid among the following is Show Answer


Q29) Ethyl benzoate is hydrolysed in the presence of NaOH to Show Answer


Q30) When an acyl halide is heated with sodium salt of a carboxylic acid, the compound formed is Show Answer


Q31) Which of the following compounds would react easily with sodium? Show Answer


Q32) Oxalic acid when reduced with zinc and dilute sulphuric acid gives. Show Answer


Q33) Amides may be converted into amines by reaction named after Show Answer


Q34) When acetamide is hydrolysed by boiling with acid, the product is: Show Answer


Q35) Which of the following acid occurs in ants? Show Answer


Q36) Hydrolysis of HCN gives Show Answer


Q37) Which of the following reagents does not give acid chloride on treating with an acid? Show Answer


Q38) Hydrolysis of methyl cyanide gives Show Answer


Q39) Electrolysis of concentrated aqueous solution of an alkali salt of fatty acid gives Show Answer


Q40) Which of the following does not contain carboxyl group? Show Answer


Q41) Acetic anhydride is obtained from acetyl chloride by the reaction of Show Answer


Q42) Which of the following groups will decrease the acidic strength of parent acid? Show Answer


Q43) Which of the following compounds gives ethylamine on Hofmann bromide reaction? Show Answer


Q44) Which of the following derivatives of carboxylic acid on hydrolysis will give brown precipitate with Nessler's reagent? Show Answer


Q45) Formic acid is manufactured on large scale by treating X with sodium hydroxide under a presure of a 1 atm and 473 K. X is Show Answer


Q46) Methyl magnesium chloride on reaction with acetyl chloride gives Show Answer


Q47) When ethanamide is boiled with aqueous NaOH, the gas evolved is: Show Answer


Q48) The weakest acid among the following is Show Answer


Q49) The carboxylic acid which does not undergo Hell vohlard zelinsky reaction is Show Answer


Q50) Sodium ethoxide reacts with ethylacetate to give Show Answer


Q51) Acetic acid is obtained when Show Answer


Q52) The chemical name of glycine is Show Answer


Q53) Benzamide reacts with nitrous acid with the evolution of Show Answer


Q54) Phenol and benzoic acid may be distinguished by their reaction with Show Answer


Q55) What makes a lemon sour? Show Answer


Q56) A useful derivative to identify carboxyllic acids is: Show Answer


Q57) Which of the following is polyprotic acid? Show Answer


Q58) Hydrolysis of benzonitrile gives Show Answer


Q59) Which of the following cannot reduce Fehling solution? Show Answer


Q60) Acetic anhydride is obtained by the reaction of Show Answer


Q61) The reaction of acids with alcohols is called Show Answer


Q62) Tartaric acid on oxidation with nitric acid gives Show Answer


Q63) Decarboxylation of monocarboxylic acids can be carried out by Show Answer


Q64) Hydrolysis of esters in alkaline medium is known as Show Answer


Q65) Which of the following cannot be obtained from tartaric acid? Show Answer


Q66) Which of the following is not a fatty acid? Show Answer


Q67) Which of the following is not a dicarboxylic acid? Show Answer


Q68) When urea is heated to a temperature above its melting point, a crystalline product is formed. It is: Show Answer


Q69) Reduction of lactic acid with excess of HI gives Show Answer


Q70) Vinegar made from cane sugar now - a - days synthetically contains Show Answer


Q71) Formic acid and acetic acid may be distinguished by the action with Show Answer


Q72) Formic acid is obtained when Show Answer


Q73) Hydrolysis of HCN gives Show Answer


Q74) An aliphatic hydroxy acid is: Show Answer


Q75) In Claisen condensation, two molecules of ester get condensed in the presence of a strong base to give Show Answer


Q76) Which of the following acids is most reactive towards esterification with cyclohexanol? Show Answer


Q77) Which of the following is most reactive towards water? Show Answer


Q78) Acetyl chloride reacts with methyl amine to give Show Answer


Q79) When acetic acid reacts with calcium, a gas is evolved. The gas is : Show Answer


Q80) Which of the following is weaker acid than benzoic acid? Show Answer


Q81) The compound formed when malonic ester reacts with urea is: Show Answer


Q82) Acetamide reacts with NaOBr in alkaline medium to form Show Answer


Q83) Strongest acid among the following is: Show Answer


Q84) In the preparation of an ester, the commonly used dehydrating agent is: Show Answer


Q85) Methyl group attached to benzene can be oxidised to carboxyl group by reacting with Show Answer


Q86) Saponification of coconut oil yields glycerol and Show Answer


Q87) On strong heating ammonium acetate gives Show Answer


Q88) Grignard reagent and ethyl acetate reacts to give Show Answer


Q89) Which of the following will not form hydrocarbon on soda lime decarboxylation? Show Answer


Q90) Pyruvic acid is obtained by Show Answer


Q91) Oleic acid is present in Show Answer


Q92) Which of the following acids has the smallest dissociation constant? Show Answer


Q93) When acetic acid reacts with ketone, the product formed is Show Answer


Q94) A halogen compound on hydrolysis with dilute alkali followed by acidification gives acetic acid. The compound is Show Answer


Q95) Which reagent will bring about the conversion of carboxylic acids into esters? Show Answer


Q96) Benzoic acid may be converted to ethyl benzoate by reaction with Show Answer


Q97) Saponification of ethyl benzoate with caustic soda as alkali, gives Show Answer


Q98) What reagent is used in the preparation of chloroacetic acid from acetic acid? Show Answer


Q99) Hydrolysis of an ester gives a carboxylic acid which on kolbe's electrolysis yields ethane. The ester is Show Answer


Q100) Amongst the following the strongest acid is Show Answer


Q101) Melting points are normally the highest for Show Answer


Q102) The -OH group of an alcohol or - COOH group of a carboxylic acid can be replaced by using Show Answer


Q103) Decarboxylation of malonic acid gives Show Answer


Q104) The reaction of an ester RCOOR' with an alcohol R'' OH in the presence of an acid gives: Show Answer


Q105) Carboxylic acids dissolve in aq. NaOH because the acids undergo Show Answer


Q106) A good test to distinguish between oxalic acid, malonic acid and succinic acids would be: Show Answer


Q107) Vinegar obtained from sugarcane has Show Answer


Q108) X is heated with soda lime and gives ethane X is Show Answer


Q109) The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of: Show Answer


Q110) A hydroxy acid on heating gives a 5 - membered lactone. The acid is Show Answer


Q111) Some carboxylic acids and their IUPAC names are given below. Which of the following is not correctly matched? Show Answer


Q112) The acid showing salt like structure in aqueous solution is Show Answer


Q113) Oximes are formed by the reaction of aldehydes and ketones with : Show Answer


Q114) The formation of cyanohydrin from ketone is an example of Show Answer


Q115) The Cannizzaro's reaction is not given by Show Answer


Q116) Acrylic acid reacts with HBr to give Show Answer


Q117) The strongest acid among the following is: Show Answer


Q118) Which of the following is weakest acid? Show Answer


Q119) At the isoelectric point for amino acids, the species present are: Show Answer


Q120) Which of the following reaction is expected to give readily a hydrocarbon product in good yields? Show Answer


Q121) Which aromatic acid among the following is weaker than simple benzoic acid? Show Answer


Q122) Which of the following most readily undergoes hydrolysis? Show Answer


Q123) 4 - Methyl benzene sulphonic acid reacts with sodium acetate to give: Show Answer


Q124) Which of the following is the weakest acid? Show Answer


Q125) Butanal undergoes aldol condensation to give:
Show Answer


Q126) Which of the following carboxylic acids undergoes decarboxylation easily? Show Answer


Q127) n - Chlorobenzaldehyde on reaction with conc. KOH at room temperature gives: Show Answer


Q128) Acetamide reacts with NaOBr in alkaline medium to form Show Answer


Q129) Carboxylic acids are reduced by red P and HI to: Show Answer


Q130) Which of the following has highest boiling point? Show Answer


Q131) Which of the following ester does not undergo Claisen - self condensation? Show Answer


Q132) Salicyclic acid on heating with soda lime (CaO + NaOH) gives: Show Answer


Q133) Acetyl chloride is reduced to acetaldehyde by Show Answer


Q134) Which of the following will not undergo Hell Vohard Zelinsky reaction: Show Answer


Q135) The product obtained by reaction of PhCHO and MeCHO medium are: Show Answer


Q136) On heating calcium acetate and calcium formate, the major product formed is Show Answer


Q137) Calcium acetate when dry distilled gives Show Answer


Q138) Silver mirror is a test for Show Answer


Q139) Ketone react with Mg-Hg over water to give Show Answer


Q140) Which does not react with Fehling solution ? Show Answer


Q141) Aldehydes are produced in atmosphere by Show Answer


Q142) Iso- Propyl alcohol on oxidation forms Show Answer


Q143) Which of the following compounds will show positive silver mirror test ? Show Answer


Q144) Benzyl alcohol is obtained from benzaldehyde by Show Answer


Q145) Which of the following is hypnotic ? Show Answer


Q146) Formalin is an aqueous solution of Show Answer


Q147) In nucleophilic addition reactions the reactivity of carbonyl compounds follows order Show Answer


Q148) Which of the following statement about benzaldehyde is not true ? Show Answer


Q149) Oxidation of Butan-2-one can be achieved by Show Answer


Q150) At room temperature formaldehyde is Show Answer


Q151) Which of the following reagents is used to distinguish acetone and acetophenone ? Show Answer


Q152) Acetone is prepared by Show Answer


Q153) Which reaction yields Bakelite ? Show Answer


Q154) Cyanohydrin of which of the following forms lactic acid ? Show Answer


Q155) Acetalehdye cannot exhibit Show Answer


Q156) Lacrymator or Tear gas is Show Answer


Q157) Aldol condensation will not occur in Show Answer


Q158) Chromyl chloride and toluene react to produce Show Answer


Q159) Which of the following react with NaOH to produce an acid and an alcohol ? Show Answer


Q160) Consider the following statements. Acetophenone can be prepared by
I) Oxidateion of 1-phenylethanol
II) Reaction of benzaldehyde with methyl magnesium bromide
III) Friedel crafts reaction of benzene with acetyl chloride.
IV) Distillation of calcium
Which of the above statement are correct ? Show Answer


Q161) Which of the following gives aldol condensation reaction ? Show Answer


Q162) Acetone reacts with Grignard Reagent to form Show Answer


Q163) Which is not true about acetophenone ? Show Answer


Q164) Tautomerism is not exhibited by Show Answer


Q165) The most reactive compound towards formation of cyanohydrin on treatment with HCN followed by acidification is Show Answer


Q166) Tollen's reagent is Show Answer


Q167) Schiff's reagent is Show Answer


Q168) Which of the following compounds gives a ketone with Grignard's reagent ? Show Answer


Q169) Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon ? Show Answer


Q170) Which of the following aldehydes can give Cannizzaro reaction with base ? Show Answer


Q171) Wolff -Kishner reduction is used for the reduction of Show Answer


Q172) Formaldehyde when reacted with methyl magnesium bromide gives Show Answer


Q173) Clemmensen's reduction of ketones is carried out in presence of Show Answer


Q174) Aldol condensation will not be observed in Show Answer


Q175) Which of the following is incorrect ? Show Answer


Q176) Which one of the following pairs is not correctly matched ? Show Answer


Q177) Paraldehyde is a trimer of Show Answer


Q178) Aniline reacts with which of these to form Schiff's base ? Show Answer


Q179) Concentrated sodium hydroxide and Benzaldehyde react to produce Show Answer


Q180) Aldehydes and ketones do not give addition reaction with Show Answer


Q181) Which of the following reactions is used for detecting presence of carbonyl group ? Show Answer


Q182) The final product formed when acetaldehyde is reduced with sodium and alcohol is Show Answer


Q183) On heating acetaldehyde with ammoniacal silver nitrate solution, we get Show Answer


Q184) The compound obtained by the reduction of propionaldehyde by amalgamated zinc and concentrated HCl is Show Answer


Q185) Which of the following does not react with phenyl hydrazine ? Show Answer


Q186) A typical compound undergoes Cannizzaro's reaction as well as aldol condensation. The possible compound is Show Answer


Q187) Benzaldehyde reacts with methyl amine to give Show Answer


Q188) Glucose forms a silver mirror with Tollen's reagent. This shows the presence of Show Answer


Q189) Reductive ozonolysis of benzene produces Show Answer


Q190) In which reaction, aromatic aldehyde is treated with acid anhydride in the presence of corresponding salt of the acid to give unsaturated aromatic acid ? Show Answer


Q191) Propanal on treatment with dilute sodium hydroxide forms Show Answer


Q192) The reagent used for the separation of acetaldehyde from acetophenone is Show Answer


Q193) Aromatic aldehydes in the presence of cyanide ion as catayst, are converted to acyloins. This reaction is called Show Answer


Q194) Which is a mixed ketone ? Show Answer


Q195) The reagent(s) which can be used to distinguish acetophenone from benzophenone is (are) Show Answer


Q196) Self condensation of acetaldehyde in the presence of dilute alkalies gives Show Answer


Q197) Which of the following does not give brick red ppt. with Fehling's solution ? Show Answer


Q198) Cannizzaro reaction is not given by Show Answer


Q199) Formaldehyde when treated with KOH (caustic potash) gives methanol and potassium formate, the reaction is known as Show Answer


Q200) Acetal is produced by reacting alcohol in the presence of dry HCl with Show Answer


Q201) The reaction of acetaldehyde with HCN followed by hydrolysis gives a product which exhibits Show Answer


Q202) From which of the following, tertiary butyl alcohol is obtained, by the action of methyl magnesium iodide ? Show Answer


Q203) Which of the following has most acidic proton ? Show Answer


Q204) Which of the following aldehydes is most reactive towards nucleophilic addition reactions ? Show Answer


Q205) The addition of HCN to carbonyl compounds is an example of Show Answer


Q206) Oxidation of toluene to benzaldehyde by the use of chromyl chloride is called Show Answer


Q207) Which of the following organic compounds exhibits positive Fehling test as well as iodoform test ? Show Answer


Q208) Benzophenone can be converted into benzene using Show Answer


Q209) The product formed by the reaction of chlorine with benzaldehyde in the absence of a catalyst is Show Answer


Q210) Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid? Show Answer


Q211) Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continously removed. The compound formed is generally known as Show Answer


Q212) The reagent with which both aldehydes and ketones react is Show Answer


Q213) Which of the following compounds is oxidised to prepare ethyl methyl ketone ? Show Answer


Q214) Under Wolff-Kisnher reduction conditions, the conversions which may be brought about is Show Answer


Q215) The compound that will not give iodoform on treatment with alkali and iodine is Show Answer


Q216) In a Cannizzaro reaction, the intermediate that will be best hydride donor is Show Answer


Q217) which of the following will react with water ? Show Answer


Q218) Which of the following has the most acidic hydrogen ? Show Answer


Q219) Which of the following will be most readily dehydrated in acidic conditions ? Show Answer


Q220) A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives Show Answer


Q221) Aldehydes and ketones cannot be distinguished by Show Answer


Q222) The order of susceptibility of nucleophilic attack on aldehydes follows are order Show Answer


Q223) Acetaldehyde and acetone can be distinguished by Show Answer


Q224) Which of the aldehydes is most reactive ? Show Answer


Q225) Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid ? Show Answer


Q226) The compound which does not give aldol condensation is Show Answer


Q227) Which of the following contains ketene group ? Show Answer


Q228) Which of the following reagent is used in Clemmensen's reduction ? Show Answer


Q229) How will you convert butan-2-one to propanoic acid ? Show Answer


Q230) With which of the following reagents, carbonyl compound shows addition cum elimination reaction ? Show Answer


Q231) Formic acid is obtained when Show Answer


Q232) Acetic acid is manufactured by the fermentation of Show Answer


Q233) Acid present in tomatoes is Show Answer


Q234) Cyanohydrin of which of the following forms lactic acid Show Answer


Q235) The acid showing salt like character in aqueous solutions is Show Answer


Q236) Hydrolysis of trichloromethane with aqueous KOh gives Show Answer


Q237) Which of the following cannot reduce Fehling's solution ? Show Answer


Q238) Glacial Acetic acid is Show Answer


Q239) Acetic acid is obtained when Show Answer


Q240) Benzoic acid gives benzene on being heated with X and phenol gives benzene on being heated with Y. Therefore X and Y are respectively Show Answer


Q241) Which salt can be produced by the reaction of carbon monoxide and caustic soda (NaOH) ? Show Answer


Q242) Toluene can be oxidised to benzoic acid by Show Answer


Q243) Given below are some statements concerning formic acid, which of them is true ? Show Answer


Q244) Formic acid and acetic acid differ in which of the following respect ? Show Answer


Q245) Which of the following reactions gives violet colour and neutral ferric chloride ? Show Answer


Q246) Which of the following is the strongest acid ? Show Answer


Q247) Which of the following orders of relative strengths of acids is correct ? Show Answer


Q248) Which of the following is the weakest acid ? Show Answer


Q249) Which one of the following orders of acid strength is correct ? Show Answer


Q250) Sulphonation of benzoic acid produces mainly Show Answer


Q251) Chlorination of toluene in presence of light and heat followed by treatment with aqueous NaOH gives Show Answer


Q252) Vinegar obtained from sugarcane is Show Answer


Q253) The weakest acid among the following is Show Answer


Q254) Which of the following compounds will evolve hydrogen on treatment with Na metal ? Show Answer


Q255) The reagent that can be used to distinguish between phenol and ethanoic acid is Show Answer


Q256) Which of the following does not undergo Hell-Volhard Zelinsky reaction ? Show Answer


Q257) Which one of the following is a strong reducing agent Show Answer


Q258) Which of the following is least acidic ? Show Answer


Q259) Weakest acid among the following is Show Answer


Q260) Which of the following reactions is expected to give readily a hydrocarbon product in good yields ? Show Answer


Q261) Lower carboxylic acids are soluble in water due to Show Answer


Q262) Dimerisation in carboxylic acid is due to Show Answer


Q263) Glacial acetic acid is obtained by Show Answer


Q264) Pick out the unsaturated fatty acid from the following Show Answer


Q265) Lactic acid on oxidation by alkaline potassium permanganate gives Show Answer


Q266) Carboxylic acids are more acidic than phenol and alcohol because of Show Answer


Q267) Identify the wrong statement from the following Show Answer


Q268) Which of the following compounds will be optically active ? Show Answer


Q269) Among the following the strongest acid is Show Answer


Q270) From the following values of dissociation constants of four acids which value represents the strongest acid ? Show Answer


Q271) Oxidation of Butan-2-one to propionic acid can be achieved by Show Answer


Q272) The major product of nitration of Benzoic acid is Show Answer


Q273) Which of the following compounds give benzoic acid on oxidation ? Show Answer


Q274) Which of the following carboxylic acids undergoes decrboxylation easily ? Show Answer


Q275) The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to Show Answer


Q276) Which of the following acids has the smallest dissociation constant ? Show Answer


Q277) Acetyl chloride can not be obtained by treating acetic acid with Show Answer


Q278) In the presence of aluminimum ethoxide, aldehydes get converted into esters. The reaction is known as Show Answer


Q279) Ethyl alcohol reacts with alcohol chloride to form Show Answer


Q280) Which will not give acetamide on reaction with ammonia ? Show Answer


Q281) Which reagent will bring about the conversion of carboxylic acids into esters ? Show Answer


Q282) Melting points are normally the highest for Show Answer


Q283) When acetamide is hydrolysed by boiling with acid the product obtained is Show Answer


Q284) The order of decreasing ease of reaction with ammonia is Show Answer


Q285) Hydrolysis of an ester gives a carboxylic acid which on Kolbe's electrolysis yields ethane. The ester is Show Answer


Q286) Which of the following compounds is resistant to nucleophilic attack by hydroxyl ion ? Show Answer


Q287) Acetic anhydride is obtained from acetyl chloride by the reaction of Show Answer


Q288) Which of the following undergoes hydrolysis ? Show Answer


Q289) Saponification of ethyl benzoate with caustic soda as alkali, gives Show Answer


Q290) The group present in waxes is Show Answer


Q291) Aspirin is Show Answer


Q292) Which of the following compounds is the reactant in Rosennund's reduction ? Show Answer


Q293) Ethyl acetate is obtained when methyl magnesium iodide reacts with Show Answer


Q294) Acetamide is Show Answer


Q295) The silver salt of a fatty acid on refluxing with an alkyl halide gives an Show Answer


Q296) An organic compound is boiled with alcoholic potash. The product is cooled and acidified with HCI. A white solid separates out. The starting compound may be Show Answer


Q297) Rearrangement of an oxime to an amide in the presence of strong acid is called Show Answer


Q298) On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is Show Answer


Q299) Which of the following compounds is amphoteric in nature ? Show Answer


Q300) 4-Methylbenzenesulphonic acid reacts with sodium acetate to give Show Answer


Q301) When salicylic acid is treated with acetic anhydride we get Show Answer


Q302) When an acyl chloride is heated with Na salt of a carboxylic acid, the product is Show Answer


Q303) Acids are formed by the reaction of Grignard reagents on Show Answer


Q304) HCHO and HCOOH are detected by Show Answer


Q305) Which of the most reactive towards nucleophilic substitution among acid derivatives ? Show Answer


Q306) Statement 1: α-hydrogen atoms in aldehydes and ketones are acidic
Statement 2: The anion left after the removal of α-hydrogen is stablished by inductive effect
Show Answer


Q307) Statement 1: Benzoic acid does not give Friedel-Craft’s reaction
Statement 2: Benzoic acid is obtained by catalytic oxidation of toluene with air in presence of Co-Mn catalyst
Show Answer


Q308) Statement 1: In sodium formate, both the C-O bonds have same value 1.27 Å
Statement 2: Same bond length is due to the phenomenon of resonance
Show Answer


Q309) Statement 1: Highly branched carboxylic acids are more acidic than unbranched acids
Statement 2: Hydrogen bonding in carboxylic acids is stronger than alcohols
Show Answer


Q310) Statement 1: Pure acetic acid is converted into ice like solid called glacial acetic acid
Statement 2: Acetic acid is stronger than HCOOH
Show Answer


Q311) Statement 1: Halogen acids donot add on to carbonyl bond
Statement 2: Addition depends upon the polarization of HX and carbonyl bond
Show Answer


Q312) Statement 1: The second dissociation constant of maleic acid is greater than Fumaric acid
Statement 2: Higher the dissociation constant of acid more is acidic character
Show Answer


Q313) On heating with aqueous alkali, chloroform yields: Show Answer


Q314) One mole of an organic compound requires 0.5 mole of oxygen to produce an acid. The compound may be: Show Answer


Q315) Methylene chloride on hydrolysis yields: Show Answer


Q316) Which of the following compounds does not have a carboxyl group? Show Answer


Q317) 2,4-dichlorophenoxy acetic acid is used as a: Show Answer


Q318) Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon? Show Answer


Q319) 3-pentanol on reaction with aluminium tertiary butoxide in the presence of acetone gives Show Answer


Q320) The silver salt of a fatty acid on refluxing with an alkyl halide gives an Show Answer


Q321) Acetalsehyde reacts with: Show Answer


Q322) Which of the following statement is correct? Show Answer


Q323) The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is Show Answer


Q324) The catalyst used in Rosenmund reaction is Show Answer


Q325) Claisen condensation is not given by Show Answer


Q326) Which of the following is a flavouring agent called ‘oil of winter green’? Show Answer


Q327) Tamarind contains Show Answer


Q328) The splitting of an ester by an alcohol is known as: Show Answer


Q329) The product formed when hydroxylamine condenses with a carbonyl compound is called Show Answer


Q330) The nitrogen content in the proteins can be quantitatively estimated by: Show Answer


Q331) Correct order of reducing power of the following carbonyl compounds Show Answer


Q332) Ethyl acetate on reaction with a Grignard reagent gives, Show Answer


Q333) Acetaldehyde reacts with HCN followed by hydrolysis forms a compound which shows: Show Answer


Q334) Carboxylic acids dissolve in aq. NaOH because the acids undergo: Show Answer


Q335) Which of the acids cannot be prepared by Grignard reagent? Show Answer


Q336) Compound A when treated with ethyl magnesim iodide in dry ether forms an addition compound which on hydrolysis form compound B. The compound B on oxidation form 3-pentanone. Hence, the compound A and B are Show Answer


Q337) Urea can be detected by Show Answer


Q338) Which of the following does not give brick red precipitate with Fehling’s solution? Show Answer


Q339) Which of the following statements is wrong? Show Answer


Q340) Pick out the reaction in which formic and acetic acid differs from each other: Show Answer


Q341) An organic substance from its aqueous solution can be separated by: Show Answer


Q342) The strongest acid amongst the following compounds is Show Answer


Q343) Reaction of formaldehyde and ammonia gives Show Answer


Q344) 4-methyl benzene sulphonic acid reacts with sodium acetate to give Show Answer


Q345) Generally it is more difficult to purify organic compounds than inorganic compounds because: Show Answer


Q346) The acetophenone can be converted to ethylbenzene by reaction with Show Answer


Q347) Boiling points of carboxylic acid are: Show Answer


Q348) The —COOH group in a carboxylic acid can be replaced by ‘H’ by heating the acid with: Show Answer


Q349) Which of the following would produce secondary alcohol? Show Answer


Q350) Which factor/s will increase the reactivity of >C=O group?
I. Presence of a group with positive inductive effect.
II. Presence of a group with negative inductive effect.
III. Presence of large alkyl group.
Show Answer


Q351) Which is useful for separating benzoic acid from a mixture of benzoic acid and methyl benzoate? Show Answer


Q352) Which of the following does not undergo polymerization? Show Answer


Q353) Methyl ketones are characterised through: Show Answer


Q354) An organic compound X contains Y and Z impurities. Their solubility differs slightly. They may be separated by: Show Answer


Q355) When petroleum is heated gradually, first batch of vapours evolved will be rich in: Show Answer


Q356) Decarboxylation of malonic acid gives Show Answer


Q357) Which of the following substances cannot be used for the replacement of —OH group in organic compounds by Cl? Show Answer


Q358) Acetyl nitrate is formed when acetic anhydride reacts with Show Answer


Q359) Which one is not prepared from tartaric acid? Show Answer


Q360) The reagent used in Clemmensen’s reduction is Show Answer


Q361) The technique of gas chromatography is suitable for compounds which are: Show Answer


Q362) There are several criteria of purity of organic compounds. Which is considered to be the best? Show Answer


Q363) What is the formula of adipic acid? Show Answer


Q364) Acrolein on complete reduction gives: Show Answer


Q365) Which one of the following is not a fatty acid? Show Answer


Q366) Tartronic acid is obtained from tartaric acid by: Show Answer


Q367) A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60. The original compound is Show Answer


Q368) Which of the following reagents is useful for separating aniline from a mixture of aniline and nitrobenzene? Show Answer


Q369) An organic compound has C and H percentage in the ratio 6 : 1 and C and O percentage in the ration 3 : 4. The compound is: Show Answer


Q370) Potassium cyanate is heated with ammonium sulphate. The product formed is Show Answer


Q371) 2-pentanone and 3-petanone can be distinguished by Show Answer


Q372) Formalin is Show Answer


Q373) Aldol condensation is given by Show Answer


Q374) Which reaction is used for detecting the presence of carbonyl group? Show Answer


Q375) An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave, C, 38.71% and H, 9.67%. The empirical formula of the compound would be: Show Answer


Q376) Acid chlorides react with Grignard’s reagents to give: Show Answer


Q377) Which of the following give an explosive RDX, on nitration? Show Answer


Q378) Acetaldehyde forms a white crystalline precipitate on mixing with a …..solution of …. Show Answer


Q379) Fehling’s solution is: Show Answer


Q380) Stephen’s reduction is used to prepare aldehyde from Show Answer


Q381) Benzyl alcohol can be prepared from benzaldehyde by Show Answer


Q382) Ammonolysis of an ester gives: Show Answer


Q383) Acetic anhydride can easily be prepared by: Show Answer


Q384) Oppenauer oxidation is the reverse process of: Show Answer


Q385) A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives Show Answer


Q386) Decarboxylation of which will yield 1,1,2,2-tetra bromoethane: Show Answer


Q387) Fehling’s solution is used in the detection of: Show Answer


Q388) Butanol on reaction with one of the following will produce banana odour: Show Answer


Q389) Some organic compounds are purified by distillation at low pressure because the compounds are: Show Answer


Q390) Calcium propanoate on refluxing yields: Show Answer


Q391) Aldehyde not showing Cannizaro’s reaction is Show Answer


Q392) Methyl cyanide can be converted into acetic acid by: Show Answer


Q393) The main reason for the fact than carboxylic acids can undergo ionization is: Show Answer


Q394) Acetamide reacts with maximum ease with: Show Answer


Q395) Formalin is the commercial name of Show Answer


Q396) The weakest acid amongst the following is Show Answer


Q397) Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is: Show Answer


Q398) When acetaldehyde is heated with Fehling’s solution, it gives a red precipitate of: Show Answer


Q399) Simple distillation can be used to separate: Show Answer


Q400) Aldol condensation between the following compounds followed by dehydration gives methyl vinyl ketone: Show Answer


Q401) Prior to the seventeenth century people knew the processes except: Show Answer


Q402) Molecular weight of acetic acid is 60. Its empirical formula is: Show Answer


Q403) Ketones can be obtained in one step by: Show Answer


Q404) The scientist who gave chromatography concept: Show Answer


Q405) Nucleophilic addition reaction will be most favoured in: Show Answer


Q406) Aliphatic aldehydes react with Fehling’s solution to give red ppt. but benzaldehyde does not produce red precipitate with Fehling’s solution because: Show Answer


Q407) The identical C—O bond lengths in carboxylate ions are due to: Show Answer


Q408) Which one of following can be oxidised to the corresponding carbonyl compound? Show Answer


Q409) A compound does not react with 2, 4 dinitrophenyl hydrazine, compound is Show Answer


Q410) 13 g of a hydrocarbon contains 1.0 g of hydrogen. Its formula is: Show Answer


Q411) 2-pentanone and 3-pentanone can be distinguished by one of the following: Show Answer


Q412) Ethyl acetate is obtained by acetaldehyde in one step process by Show Answer


Q413) On reaction with hydroxylamine, aldehydes produce Show Answer


Q414) The solvent which can dissolve all the carboxylic acids is: Show Answer


Q415) 0.759 g of a silver salt of a dibasic organic acid on ignition left 0.463 g metallic silver. The equivalent weight of acid is: Show Answer


Q416) Acetone and acetaldehyde can be distinguished by Show Answer


Q417) Hydroxamic acid test is employed to detect Show Answer


Q418) Conversion of benzaldehyde to 3-phenylprop-2-en-1-oic acid is Show Answer


Q419) Dry distillation of calcium formate and subsequent treatment with conc KOH gives the mixture of Show Answer


Q420) The main component of oil of winter green is Show Answer


Q421) Acetic acid is manufactured by the fermentation of: Show Answer


Q422) Which is/are hydroxy acid (s)? Show Answer


Q423) Which of the following will not give cyclic products upon being heated or being treated by an acid? Show Answer


Q424) The most suitable reagent for the conversion of primary alcohol into aldehyde with the same number of carbon is Show Answer


Q425) Which is used as a preservative for biological specimens? Show Answer


Q426) Carbon forms a very large number of compounds because: Show Answer


Q427) Which of the following does not give HVZ reaction? Show Answer


Q428) Which of the following on treatment with Baeyer’s reagent will give meso-tartaric acid? Show Answer


Q429) Wolff-Kishner’s reaction is: Show Answer


Q430) Aldehydes and ketones both give addition reaction with: Show Answer


Q431) Identify the organic compound which, on heating with strong solution of NaOH, partly converted into an, acid salt and partly into alcohol. Show Answer


Q432) Which of the following will undergo Cannizzaro’s reaction? Show Answer


Q433) Long chain carboxylic acids are called fatty acids because: Show Answer


Q434) Which of the following reagents can form a hydrazone with alkanone? Show Answer


Q435) Which of the following will react with water? Show Answer


Q436) Ketones are first oxidation product of: Show Answer


Q437) Which does not react with Fehling’s solution? Show Answer


Q438) Amides are formed by the reaction of acid chloride with Show Answer


Q439) The product formed in aldol condensation is: Show Answer


Q440) Tartaric acid is not used in : Show Answer


Q441) Salt can be obtained from a concentrated seawater by: Show Answer


Q442) Liquid obtained by distillation of red ant is Show Answer


Q443) Monocarboxylic acids show functional isomerism with : Show Answer


Q444) Semicarbazide is: Show Answer


Q445) Which statement is correct? Show Answer


Q446) Which gives lactic acid on hydrolysis after reacting with HCN? Show Answer


Q447) Which of the following will give readily a hydrocarbon? Show Answer


Q448) Base catalysed aldol condensation occurs with: Show Answer


Q449) When formaldehyde is heated with ammonia the compound formed is: Show Answer


Q450) The reaction of acetamide with water is an example of: Show Answer


Q451) The most acidic among the following is: Show Answer


Q452) Which of the following compounds neither forms semicarbazone nor oxime? Show Answer


Q453) When a mixture of calcium benzoate and calcium acetate is dry distilled, the resulting compound is Show Answer


Q454) Paraldehyde is: Show Answer


Q455) Calcium formate on distillation gives Show Answer


Q456) Alkaline hydrolysis of 1,1-dichloroalkane yields: Show Answer


Q457) Sodium ethoxide has reacted with ethanoyl chloride. The compound that is produced in the above reaction is Show Answer


Q458) Which of the following carboxylic acids undergoes decarboxylation easily? Show Answer


Q459) Which of the following compound cannot formed an optically active cyanohydrins on reaction with HCN? Show Answer


Q460) The weakest acid among the following is: Show Answer


Q461) Reaction of acid with alcohols is also known as Show Answer


Q462) A mixture of water and NaCl can be separated by: Show Answer


Q463) Which halo acid gives cyclic ester on treatment with aq.NaOH? Show Answer


Q464) Which reduces carboxylic acid directly to primary alcohols? Show Answer


Q465) Which of the product is formed when acetone is reacted with barium hydroxide solution? Show Answer


Q466) The formation of cyanohydrin from a ketones is an example of: Show Answer


Q467) Aldehyde are the first oxidation product of Show Answer


Q468) Urea is preferred to ammonium sulphate as a nitrogenous fertilizer because Show Answer


Q469) Boiling point of acetone is: Show Answer


Q470) Which of the following is correct? Show Answer


Q471) Acetone may be produced from starch by the action of: Show Answer


Q472) Benzaldehyde condense with acetaldehyde to produce Show Answer


Q473) Formic acid cannot be halogenated with chlorine in presence of red P, but acetic acid can be halogenated in the same way, because: Show Answer


Q474) Treatment of acetaldehyde with ethyl magnesium bromide and subsequent hydrolysis gives: Show Answer


Q475) Kjeldahl’s method cannot be used for the estimation of nitrogen in: Show Answer


Q476) Formaldehyde is not used in: Show Answer


Q477) Acetic acid will be obtained on oxidation of Show Answer


Q478) Acetamide is Show Answer


Q479) Which reagent can convert acetic acid into ethanol? Show Answer


Q480) Which reaction, intermediate is formed during the condensation reaction between acetaldehyde and formaldehyde? Show Answer


Q481) Which of the following on heating with aqueous KOH, produces acetaldehyde? Show Answer


Q482) Which carbonyl compound does not undergo aldol condensation? Show Answer


Q483) Which of the following has most acidic proton? Show Answer


Q484) Which on oxidation will not give a carboxylic acid with the replacement of carbon atoms? Show Answer


Q485) Which one is a polyprotic acid? Show Answer


Q486) Halogens can be estimated by: Show Answer


Q487) Ethyl isocyanide on acidic hydrolysis generates Show Answer


Q488) Which would undergo aldol condensation? Show Answer


Q489) Aldehydes can be oxidised by Show Answer


Q490) Which can be oxidised to the corresponding carbonyl compound? Show Answer


Q491) Which of the following acids combines the properties of acid and aldehyde? Show Answer


Q492) Stephen’s reaction is reduction of: Show Answer


Q493) Dry distillation of barium salt of Hexane-1,2-dicarboxylic acid gives: Show Answer


Q494) Which is liquid at room temperature? Show Answer


Q495) The key step in Cannizaro’s reaction is the intermolecular shift of Show Answer


Q496) Osazone formation is used to characterise: Show Answer


Q497) Acetic acid vapours when passed over aluminium phosphate forms: Show Answer


Q498) A mixture contains four solid organic compounds A,B,C,D. On heating only C changes from solid to vapour state. C can be separated from others present in a mixture by: Show Answer


Q499) Which of the following compounds will undergo self aldol condensation in presence of cold dilute alkali? Show Answer


Q500) Which of the following would undergo Hofmann reaction to give a primary amine? Show Answer


Q501) In kjeldahl’s method, nitrogen present is estimated as: Show Answer


Q502) Correct order of reactivity of acid derivatives towards a nucleophile is Show Answer


Q503) Methylethyl ketone can be reduced to n-butane by Show Answer


Q504) Which statement is incorrect in the case of acetaldehyde and acetone? Show Answer


Q505) Acetone is used: Show Answer


Q506) Which of the following will form two isomers with semi carbazide? Show Answer


Q507) First Noble Prize winner in chemistry is: Show Answer


Q508) Which cannot be used as acylating agent? Show Answer


Q509) With hot conc. KOH brown black resinous product is given by: Show Answer


Q510) Acetamide and ethyl amine are distinguished by reacting with Show Answer


Q511) General formula of saturated carboxylic acid is: Show Answer


Q512) The reagent which can be used to distinguish acetophenone from benzophenone is : Show Answer


Q513) Acetaldehyde is not obtained in the reactions Show Answer


Q514) The acid present in tomatoes is: Show Answer


Q515) Cross aldol condensation occurs between Show Answer


Q516) Which method cannot be used for purification of liquids? Show Answer


Q517) Aniline is purified by: Show Answer


Q518) Percentage of Se(at. mass = 78.4 ) in peroxidase anhydrase enzyme is 0.5% by weight, then minimum molecular mass of peroxidase anhydrase enzyme is: Show Answer


Q519) The IUPAC name of acrolein is: Show Answer


Q520) An organic compound contains hydrogen, oxygen, a single carbon atom and responds positively to Tollen’s reagent. The compound is: Show Answer


Q521) The reagent with which both acetaldehyde and acetophenone react easily are Show Answer


Q522) Formaldehyde gives an additive product with methyl magnesium iodide which on aqueous hydrolysis gives: Show Answer


Q523) The compound that doesn’t undergo aldol condensation Show Answer


Q524) Which of the following products is formed when adipic acid is heated? Show Answer


Q525) A silver salt of fatty acid on heating with an alkyl halide gives: Show Answer


Q526) For hydrolysis of the following functional groups, the decreasing order of reactivity is: Show Answer


Q527) Aldehyde used in the manufacture of perfumes is: Show Answer


Q528) When sodium formate is heated it gives: Show Answer


Q529) In esterification, the reactivity of alcohols is: Show Answer


Q530) Separation of organic compounds by column chromatography is due to: Show Answer


Q531) Cannizzaro’s reaction involves: Show Answer


Q532) An aldehyde can be distinguished from a ketone by the use of the reagent: Show Answer


Q533) Aldol condensation between the following compounds followed by dehydration gives methyl vinyl ketone: Show Answer


Q534) Which can be used to distinguish aldehydes and ketones? Show Answer


Q535) The important step in Cannizzaro’s reaction is the intermolecular shift of: Show Answer


Q536) Given below are some statements concerning formic acid, which of them is true? Show Answer


Q537) When Lemery for the first time proposed his classification of substances in 1675 the substance not known among the following was: Show Answer


Q538) Formalin is: Show Answer


Q539) Chloral belongs to the class of: Show Answer


Q540) Which one of the following product is formed when calcium salt of adipic acid is heated? Show Answer


Q541) Which gives positive haloform test and positive Fehling’s solution test? Show Answer


Q542) Acetone when saturated with dry acid gives: Show Answer


Q543) Aceto acetic ester behaves as: Show Answer


Q544) The correct order of acidic strengths of the carboxylic acids is Show Answer


Q545) Carboxylic acids react with diazomethane to yield: Show Answer


Q546) Tamarind contains: Show Answer


Q547) Which of the following, compounds is the reactant in Rosenmund’s reduction? Show Answer


Q548) Aldol condensation will not take place in Show Answer


Q549) The reagent with which both acetaldehyde and acetone react easily is: Show Answer


Q550) Which of the following is hydroxy acid? Show Answer


Q551) Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid? Show Answer


Q552) Amides may be converted into amines by reaction named after: Show Answer


Q553) The correct order of decreasing acid strength of trichloroacetic acid, (A), trifluoroacetic (B), acetic acid (C)and formic acid (D) is: Show Answer


Q554) Which of the following is the strongest acid? Show Answer


Q555) In Lassaigne’s test sodium metal is used because: Show Answer


Q556) A process that involves the union of two or more molecules to form a new molecular aggregate without losing any simple molecule is known as: Show Answer


Q557) Which of the following is an example of aldol condensation? Show Answer


Q558) Aldehydes behave as: Show Answer


Q559) Acetone is prepared by: Show Answer


Q560) Benzaldehyde gives a positive test with Show Answer


Q561) Vinegar contains: Show Answer


Q562) Acetaldehyde is the rearrangement product of: Show Answer


Q563) When sodium extract is prepared, generally the substance ignites: Show Answer


Q564) The compound which forms acetaldehyde when heated with dilute NaOH, is Show Answer


Q565) Tollen’s reagent is: Show Answer


Q566) Which structural unit is possessed by aldehyde and not ketone? Show Answer


Q567) Acetaldehyde undergoes self condensation in presence of aluminium ethoxide to give ethyl acetate. This reaction is called: Show Answer


Q568) Formaldehyde polymerises from 6 to 100 molecules to form: Show Answer


Q569) Magenta is: Show Answer


Q570) Aldehyde which is formed during photosynthesis of plants is Show Answer


Q571) Which of the following carboxylic acids undergoes decarboxylation easily? Show Answer


Q572) Ink stains can be removed from clothes by treating them with: Show Answer


Q573) Identify ‘acetaldoxime’ Show Answer


Q574) Benzaldehyde and acetaldehyde can be distinguished by: Show Answer


Q575) Lactic acid extracted from muscles is: Show Answer


Q576) Phenol is soluble in: Show Answer


Q577) Reactions between organic compounds are generally slow because they are: Show Answer


Q578) Lemon gives sour taste because of Show Answer


Q579) On warming formic acid with ammoniacal silver nitrate, the product formed is: Show Answer


Q580) Simple distillation is used to separate liquids which differ in their boiling point by: Show Answer


Q581) Maximum percentage of chlorine is in: Show Answer


Q582) Which of the following aldehydes give red precipitated with Fehling solution? Show Answer


Q583) Pinacole is: Show Answer


Q584) A mixture of calcium acetate and calcium formate on heating gives: Show Answer


Q585) Which of the following can be used to differentiate between aldehyde and ketone? Show Answer


Q586) If the compound contains C, H and halogen. When C and H are to be estimated the combustion tube at the exit should contain a: Show Answer


Q587) A ketone on reduction gives: Show Answer


Q588) Which is least soluble in water? Show Answer


Q589) Acetals are: Show Answer


Q590) Hexamethylene tetramine is used as an: Show Answer


Q591) Which of the following gives an aldehyde on dry distillation? Show Answer


Q592) Which aldehyde cannot be obtained by Rosenmund’s reaction? Show Answer


Q593) Which is tribasic acid? Show Answer


Q594) Which of the following on heating with aqueous KOH, produces acetaldehyde? Show Answer


Q595) Fruits are preserved by using: Show Answer


Q596) Ketones can be prepared by: Show Answer


Q597) The percentage of nitrogen in urea is about: Show Answer


Q598) Collin’s reagent is used to convert Show Answer


Q599) Which of the following reactant give Tollen’s reagent and Fehling’s solution test? Show Answer


Q600) Reduction of aldehydes and ketones into hydrocarbons using Zn – Hg HCl conc. is called? Show Answer


Q601) How will you convert butan-2-one to propanoic acid? Show Answer


Q602) When vapours of acetic acid are passed over …. 300℃ we get acetone. Show Answer


Q603) Which product is obtained on reduction of methanal in the presence of concentrated NaOH? Show Answer


Q604) Which of the following doesn’t give Fehling solution test? Show Answer


Q605) Which gives smell of burnt sugar on charring? Show Answer


Q606) Hydrated oxalic acid contains: Show Answer


Q607) Cacodyl test is used for identification of: Show Answer


Q608) During hydrogenation of oils vegetable ghee is formed. In this process: Show Answer


Q609) Formaldehyde can be distinguished from acetaldehyde by the use of: Show Answer


Q610) Which of the following carbonyl compounds on condensation gives an aromatic compound? Show Answer


Q611) Mild oxidation of carboxylic acids occurs at…….position. Show Answer


Q612) Almost all amides exist in: Show Answer


Q613) In public urinals, we observe some nascent smell. This smell is due to: Show Answer


Q614) The end products in the Cannizaro reaction of benzaldehyde is Show Answer


Q615) Turpentine oil can be purified by: Show Answer


Q616) Elements found in explosive are: Show Answer


Q617) Which acid forms Zwitter ions? Show Answer


Q618) Acetaldehyde cannot show Show Answer


Q619) In Lassaigne’s test for N, S and halogens, the organic compound is: Show Answer


Q620) Hydrolysis of an ester gives acid A and alcohol B. The acid reduces Fehling’s solution. Oxidation of alcohol B gives acid A. The ester is: Show Answer


Q621) Weakest acid among the following is: Show Answer


Q622) The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive, called RDX. The organic compound is Show Answer


Q623) The decreasing order of solubility of methanal (A), propanaldehyde (B), benzaldehyde (C) and acetophenone (D): Show Answer


Q624) Why —OH group in ethyl alcohol is neutral, while it is acidic in acetic acid? Show Answer


Q625) The class of compounds that are reduced to primary alcohols and also respond to Fehling’s solution are known as: Show Answer


Q626) Which of the following aldehydes on chlorination will give a product, which can be used for the synthesis of DDT? Show Answer


Q627) The relation of the isoelectric point for an amino acid to solubility is: Show Answer


Q628) The discovery that shocked the vital force theory was: Show Answer


Q629) A mixture of camphor and NaCl can be separated by: Show Answer


Q630) Among the given compounds, the most susceptible to nucleophile attack at the carbonyl group is: Show Answer


Q631) In Tischenko’s reaction an aldehyde is heated with catalyst: Show Answer


Q632) Distillation under reduced pressure in principle resembles with: Show Answer


Q633) Which of the following does the best represent the structure of the carboxylate ion? Show Answer


Q634) Acetic acid is obtained when: Show Answer


Q635) Acetophenone is used in: Show Answer


Q636) In organic compounds sulphur is estimated as: Show Answer


Q637) Malonic acid and succinic acid are distinguished by: Show Answer


Q638) Pleasant odours of common fruits is due to: Show Answer


Q639) The reduction of aldehydes and ketones to the corresponding alkanes in presence of alkaline hydrazine solution is called: Show Answer


Q640) The acid showing salt like structure in aqueous solution is: Show Answer


Q641) Cannizaro reaction is given by Show Answer


Q642) Acetone on addition to methyl magnesium bromide forms a complex, which on decomposition with acid gives Xand Mg(OH)Br. Which one of the following is X? Show Answer


Q643) Chromatographic techniques of purification can be used for: Show Answer


Q644) Decarboxylation of malonic acid gives: Show Answer


Q645) Which of following reactions convert acetone into hydrocarbon having same number of carbon atoms? Show Answer


Q646) Fruity smell is given by Show Answer


Q647) Hydrolysis of HCN gives: Show Answer


Q648) Which of the following is an example of aldol condensation? Show Answer


Q649) Benedict’s solution provides: Show Answer


Q650) The Cannizaro reaction is not given by Show Answer


Q651) Carboxylic acids readily dissolve in aqueous sodium bicarbonate, liberating carbon dioxide. Which one of the following is correct? Show Answer


Q652) Doctors detect diabetes disease by testing the presence of glucose in urine with : Show Answer


Q653) Which reaction is used for the preparation of acetophenone? Show Answer


Q654) Carbonyl group undergoes: Show Answer


Q655) Carbon shows maximum capacity of catenation because: Show Answer


Q656) An important reaction of acetone is autocondensation in presence of concentrated sulphuric acid to give the aromatic compound Show Answer


Q657) Acetals are Show Answer


Q658) Azeotropes are: Show Answer


Q659) The name glacial acid is given to pure acetic acid: Show Answer


Q660) The IUPAC name of tartaric acid is: Show Answer


Q661) The IUPAC name of caproic acid is: Show Answer


Q662) An azeotropic mixture of ethanol and water is first treated with …… before subjecting for fractional distillation to separate them. Show Answer


Q663) Acetaldehyde is used: Show Answer


Q664) Ethanal reacts with alkali to give 3-hydroxybutanal. This reaction is: Show Answer


Q665) When acetic acid is dissolved in benzene its molecular mass: Show Answer


Q666) Chloral is prepared industrially by the chlorination of: Show Answer


Q667) Paraldehyde is used as a: Show Answer


Q668) Ketones are prepare by: Show Answer


Q669) The correct sequence of decreasing order of reactivity of hydrolysis of acid chlorides is Show Answer


Q670) Nitration of salicylic acid will give: Show Answer


Q671) In Dumas’ method of estimation of nitrogen 0.35 g of an organic compound gave 55mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be:
(Aqueous tension at 300 K = 15 mm)
Show Answer


Q672) A powerful sedative made from acetaldehyde is: Show Answer


Q673) Trichloroacetaldehyde was subjected to Cannizzaro’s reaction by using NaOH. The mixture of the products conatains sodium trichloroacetate ion and another compound. The other compound is:2,2,2-Trichloroethanol Show Answer


Q674) Acetic anhydride is prepared in the laboratory by heating sodium acetate with Show Answer


Q675) The acid which contains the aldehyde group is Show Answer


Q676) When acetyl chloride reacts with any amine, the reaction is known as: Show Answer


Q677) Fehling solution is Show Answer


Q678) Formaldehyde can be manufactured from: Show Answer


Q679) The boiling and melting points of carboxylic acids depend on: Show Answer


Q680) Which of the following does not undergo Cannizaro’s reaction? Show Answer


Q681) The strongest acid amongst the following compound is: Show Answer


Q682) In the Lassaigne’s test the Sulphur present in the organic compound first changes into: Show Answer


Q683) Which of the following statements is correct about a carbonyl group? Show Answer


Q684) Formaldehyde and formic acid can be distinguished by: Show Answer


Q685) Oxidation of which compound is not possible? Show Answer


Q686) Which type of isomerism is not common in carboxylic acid? Show Answer


Q687) Which one of the following will undergo meta-sustitution on monochlorination? Show Answer


Q688) When acetamide is hydrolysed by boiling with acid, the product obtained is Show Answer


Q689) Lemon is sour due to: Show Answer


Q690) Both acetaldehyde and ketone react with: Show Answer


Q691) Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields: Show Answer


Q692) Electrolytic reduction with lead cathode of oxalic acid yields: Show Answer


Q693) Benzaldehyde and acetone can be best distinguished using Show Answer


Q694) Which of the following statements is/are correct? Show Answer


Q695) Which of the following reaction is a condensation reaction? Show Answer


Q696) In Duma’s method for determining the nitrogen content of an organic compound, the nitrogen content is determined in the form of: Show Answer


Q697) In a Cannizaro reaction, the intermediate that will be best hydride donor is Show Answer


Q698) 0.58 g of hydrocarbon on combustion gave 0.9 g water. The percentage of carbon is about : Show Answer


Q699) Which is the most reactive of the following? Show Answer


Q700) When acetamide is hydrolysed by boiling with acid, the product formed is: Show Answer


Q701) The most reactive compound towards formation of cyanohydrin on treatment with HCN followed by acidification is Show Answer


Q702) Which one of the following aldehydes will not form an aldol when treated with dil. NaOH? Show Answer


Q703) A nitrogen containing organic compound gave an oily liquid on heating with bromine and potassium hydroxide solution. On shaking the product with acetic anhydride, an antipyretic drug was obtained. The reactions indicate that the starting compound is Show Answer


Q704) Acid hydrolysis of X yields two different organic compounds. Which one of the following is X? Show Answer


Q705) An alcohol, on oxidation, produces a ketone with the same number of carbon atoms. When the ketone is oxidized, it yields an acid with a lesser number of carbon atoms. The alcohol could be a Show Answer


Q706) At room temperature formaldehyde is : Show Answer


Q707) Positive Beilstein test shows that: Show Answer


Q708) Among the following, the most acidic is Show Answer


Q709) Acetyl chloride is reduced to acetaldehyde by: Show Answer


Q710) The compound having least solubility in water is: Show Answer


Q711) 2-bromopropanoic acid when heated with alcoholic KCN gives an organic compound which on further acid hydrolysis gives the compoundA. Hence, A will be: Show Answer


Q712) Which one of the following compounds, each with two carbons will have the highest boiling point? Show Answer


Q713) In organic chemistry the element which is estimated by difference: Show Answer


Q714) In estimation of carbon and hydrogen, the saphnolite resin absorbs: Show Answer


Q715) Which reaction is suitable for the preparation of α-chloroacetic acid? Show Answer


Q716) A fractionating column is used in: Show Answer


Q717) Ni formate is best used as catalyst in: Show Answer


Q718) The term carboxylic is a contraction of two terms: Show Answer


Q719) Boiling point of a compound does not depend on: Show Answer


Q720) Which acid is an optically active? Show Answer


Q721) Two substances when separated out on the basis of their extent of adsorption by one material, the phenomenon is: Show Answer


Q722) Which of the following statement is correct? Show Answer


Q723) The molecular formula of chlorinated acetone produced in the distillation with bleaching powder is: Show Answer


Q724) Which one of the following contains acetic acid? Show Answer


Q725) Salicylic acid gives a compound known as oil of winter green when treated with Show Answer


Q726) The compound easily soluble in water is: Show Answer


Q727) Carbon atom of carbonyl gp. in aldehyde is of: Show Answer


Q728) Which reagent is useful in separating benzoic acid from phenol? Show Answer


Q729) Acetone and acetophenone can be identified by: Show Answer


Q730) In presence of sodium ethoxide two molecules of ethyl acetate interact to form acetoacetic ester, this process is known as: Show Answer


Q731) When calcium acetate is distilled, it will produce which of the following compound? Show Answer


Q732) The main source of organic compounds is: Show Answer


Q733) The strongest acid is: Show Answer


Q734) Which one of the following is the mechanism of hydrolysis of ethyl benzoate by refluxing with dil. Aq. NaOH solution? Show Answer


Q735) Formaldehyde can be distinguished from acetaldehyde by: Show Answer


Q736) Oxalic acid may be distinguished from tartaric acid by: Show Answer


Q737) Aldehydes are produced in atmosphere by: Show Answer


Q738) Which is not an organic compound? Show Answer


Q739) In organic compound phosphorus is estimated as: Show Answer


Q740) Wolff-Kishner reduction, reduces Show Answer


Q741) Steam distillation is a better method of purification for…..compounds. Show Answer


Q742) On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is Show Answer


Q743) When an acyl chloride is heated with Na salt of a carboxylic acid, the product is an Show Answer


Q744) The IUPAC name of crotonaldehyde is: Show Answer


Q745) HVZ reaction leads to the formation of: Show Answer


Q746) Which of the following acids acts as reducing agent? Show Answer


Q747) Which part of —COOH group is involved in the reaction of acid with metals? Show Answer


Q748) HCHO and HCOOH are distinguished by treating with: Show Answer


Q749) Formula of diacetone alcohol is: Show Answer


Q750) Mercuric chloride is reduced to mercurous chloride by: Show Answer


Q751) An organic compound containing C,H and N have the percentage 40, 13.33 and 46.67 respectively. Its empirical formula may be: Show Answer


Q752) Pick up the correct statement from the following: Show Answer


Q753) Certain unripe fruits like green apples and plums contain: Show Answer


Q754) Which of the following is least acidic? Show Answer


Q755) For a compound to be purified by steam distillation: Show Answer


Q756) Amides are: Show Answer


Q757) Silica gel is used for keeping away the moisture because it: Show Answer


Q758) Benzaldehyde on refluxing with aqueous alcoholic KCN produce Show Answer


Q759) A bottle containing two immiscible liquids is given to you. These may be separated by: Show Answer


Q760) Which of the following is obtained by the oxidation of propionaldehyde? Show Answer


Q761) Acetaldehyde and acetone differ in their reaction with: Show Answer


Q762) Which of the following reactions can be used to change benzaldehyde to cinnamic acid? Show Answer


Q763) p-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form the compound B . The latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is Show Answer


Q764) Butan-2-one can be converted to propanoic acid by: Show Answer


Q765) Lindlar’s catalyst is: Show Answer


Q766) In a Cannizaro’s reaction, the combination not possible is Show Answer


Q767) When propanone reacts with chlorine, it forms: Show Answer


Q768) Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as Show Answer


Q769) The structural formula of the compound isomeric with acetone is: Show Answer


Q770) An organic compound contains, C, H and S. When C and H are to be estimated the combustion tube at the exit should contain a: Show Answer


Q771) In the preparation of an ester the commonly used dehydrating agent is: Show Answer


Q772) In glycine the basic group is: Show Answer


Q773) Which of the following have high melting points? Show Answer


Q774) The reverse of esterification is known as: Show Answer


Q775) 0.14 g of an acid required 12.5 mL of 0.1N NaOH for complete neutralization. The equivalent weight of the acid is: Show Answer


Q776) Which of the following contains pungent odour? Show Answer


Q777) Which of the following cannot reduce Fehling solution? Show Answer


Q778) Which of the following on treatment with 50% aq. NaOH gives alcohol and acid? Show Answer


Q779) Which of the following does not undergo benzoin condensation? Show Answer


Q780) When acetaldehyde is heated with Fehling solution, a red precipitate is formed. Which of the following is that? Show Answer


Q781) Benzaldehyde reacts with ammonia to form Show Answer


Q782) Ketones are less reactive than aldehydes because: Show Answer


Q783) Dialkyl cadmium reacts with a compound to form a ketone. The compound is: Show Answer


Q784) The reaction of 1 mole each of p-hydroxyacetophenone and methyl magnesium iodide will give Show Answer


Q785) Which of the following has the most acidic hydrogen? Show Answer


Q786) Which of the following will be most readily dehydrated under acidic conditions? Show Answer


Q787) Sodium salt of formic acid on strong heating followed by acid hydrolysis yields: Show Answer


Q788) Which of the following acids has the smallest dissociation constant? Show Answer


Q789) Salol (phenyl salicylate ) is used as an: Show Answer


Q790) Aldehydes and ketones will not form crystalline derivatives with: Show Answer


Q791) Pyruvic acid is obtained by Show Answer


Q792) On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is Show Answer


Q793) Carbon atom of carbonyl gp. in ketone is of: Show Answer


Q794) Formic acid is not a representative member of the carboxylic acids because: Show Answer


Q795) The molecular formula of methanoic acid and propanoic acid differs by: Show Answer


Q796) The most suitable method of separation of 1 : 1 mixture of ortho and para nitrophenols is: Show Answer


Q797) Which of the following is not true about the urea? Show Answer


Q798) The term hypnone is used for: Show Answer


Q799) The boiling points of aldehydes and ketones lie in between alkanes and alcohols of comparable masses because: Show Answer


Q800) Alkaline hydrolysis of esters is………than acid hydrolysis. Show Answer


Q801) Main product obtained from the reaction of ammonia and formaldehyde is Show Answer


Q802) The gas evolved on heating alkali formate with soda-lime is Show Answer


Q803) 2, 4-dichlorophenoxy acetic acid is used as Show Answer


Q804) Benzaldehyde undergoes Claisen’s condensation with another aldehyde to give cinnamaldehyde. The aldehyde is: Show Answer


Q805) An organic compound X gives a red precipitate on heating with Fehling’s solution. Which one of the following reactions yields X as a major product? Show Answer


Q806) The Cannizzaro’s reaction is not given by: Show Answer


Q807) Which of the following represents the correct order of the activity in the given compounds? Show Answer


Q808) Ellution is the process for: Show Answer


Q809) Pyroligneous acid contains: Show Answer


Q810) The oxidation of benzyl chloride with lead nitrate gives Show Answer


Q811) Chlorine does not react with: Show Answer


Q812) Bakelite polymer is formed by the polymerization of Show Answer


Q813) The difference between aldol condensation and Cannizzaro’s reaction is that: Show Answer


Q814) Collin’s reagent causes the conversion: Show Answer


Q815) Cyanohydrin of which compound gives lactic acid on hydrolysis? Show Answer


Q816) The enolic form of acetone contains: Show Answer


Q817) Monocarboxylic acids (saturated) are regarded as………..oxidation products of paraffins. Show Answer


Q818) Which of the following forces explain the boiling point of aldehydes and ketones? Show Answer


Q819) Ethanol vapours are passed over heated copper at 300℃ and product is treated with aqueous NaOH. The final product is: Show Answer


Q820) A distinctive and characteristic functional group in fat is: Show Answer


Q821) Sodium acetamide smells like: Show Answer


Q822) On mixing ethyl acetate with aqueous sodium chloride, the composition of the resultant solution is: Show Answer


Q823) The final product formed when acetaldehyde is reduced with sodium and alcohol is: Show Answer


Q824) A carboxylic acid is converted into its anhydride using Show Answer


Q825) Ammonium formate on heating yields: Show Answer


Q826) Aldehydes and ketones form addition products with: Show Answer


Q827) Lactic acid on oxidation with Fenton’s reagent gives main product: Show Answer


Q828) Urotropine has the composition: Show Answer


Q829) An aliphatic hydroxy acid is: Show Answer


Q830) Carbonyl compounds when treated with sodium bisulphite solution generally a crystalline sodium bisulphite addition product is formed but which of the following carbonyl compound not forms crystalline addition product? Show Answer


Q831) In presence of iodine catalyst, chlorine reacts with acetic acid to form: Show Answer


Q832) Propanone does not undergo: Show Answer


Q833) A typical compound undergoes Cannizzaro’s reaction and aldol condensation. It is : Show Answer


Q834) Formaldehyde when reacted with methyl magnesium bromide gives Show Answer


Q835) Ethane can be obtained from ethanal in one step by: Show Answer


Q836) Partial oxidation of methane gives: Show Answer


Q837) Ethyl acetate is obtained when methyl magnesium bromide reacts with Show Answer


Q838) Collin’s reagent is used to convert Show Answer


Q839) Which can be reduced to corresponding hydrocarbon by Zn/HCl? Show Answer


Q840) The product obtained when acetic acid is treated with phosphorus trichloride is: Show Answer


Q841) The final products of oxidation of isopropyl alcohol are: Show Answer


Q842) Which gives a ketone with a Grignard reagent? Show Answer


Q843) Self condensation of acetaldehyde, in the presence of dilute alkalies gives Show Answer


Q844) Hybridization of carbon in carbonylic group is: Show Answer


Q845) When benzaldehyde reacts with acetophenone in presence of sodium hydroxide, then product is Show Answer


Q846) Acetaldehyde cannot exhibit: Show Answer


Q847) Cannizaro reaction is performed by Show Answer


Q848) In a Cannizzaro’s reaction, the intermediate that will be best hydride donor is: Show Answer


Q849) Aldehydes can be conveniently separated from alcohols by treating with: Show Answer


Q850) One having high vapour pressure at temperature below its m. p. : Show Answer


Q851) Which of the following compounds would be the main product of an aldol condensation of acetaldehyde and acetone? Show Answer


Q852) Which of these does not contain –COOH group? Show Answer


Q853) Schiffs and Piria method is used for the estimation of: Show Answer


Q854) Select the strongest acid: Show Answer


Q855) The most acidic of the following is Show Answer


Q856) The formula of a compound which gives simple whole number atomic ratio in one molecule of a compound is called: Show Answer


Q857) The most appropriate reagent to distinguish between acetaldehyde and formaldehyde is Show Answer


Q858) The reaction of acetaldehyde with Tollen’s reagent gives Show Answer


Q859) Aldol condensation is given by: Show Answer


Q860) Isoelectric point is the pH at which : Show Answer


Q861) Ascorbic acid is a/an: Show Answer


Q862) Lacrymator or tear gas is: Show Answer


Q863) Which acid derivatives on hydrolysis will give brown precipitate with Nessler’s reagent? Show Answer


Q864) Formic acid: Show Answer


Q865) Reactivity of acids in esterification follows the order: Show Answer


Q866) Three of the following four reactions are due to one similar feature of carbonyl compounds, while the fourth one is different. Which one is fourth? Show Answer


Q867) The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of: Show Answer


Q868) The reaction product of the compound ‘A' with excess of methyl magnesium iodide followed by acidification yields t-butanol. The compound A is: Show Answer


Q869) Which is obtained by the oxidation of propionaldehyde? Show Answer


Q870) Acetone and acetaldehyde can be identified by treatment with: Show Answer


Q871) The presence of carbon in an organic compound can be shown by Show Answer


Q872) Choose the incorrect statement Show Answer


Q873) Benzoin is Show Answer


Q874) Highest pH value among the following is that of: Show Answer


Q875) Molecular weight of phorone is equal to Show Answer


Q876) Raw juice in sugar factories is generally concentrated by: Show Answer


Q877) Which of the following converts carbonyl compounds into hydrocarbons? Show Answer


Q878) Two molecules of an aldehyde react with a concentrated solution of caustic soda and produces one molecule of an alcohol and acid each, which one is the aldehyde? Show Answer


Q879) Schiff’s reagent is: Show Answer


Q880) The compound which is not formed during the dry distillation of a mixture of calcium formate and calcium acetate is Show Answer


Q881) Fuels from crude oil are separated from one another by: Show Answer


Q882) The aldol condensation of acetaldehyde results in the formation of: Show Answer


Q883) Which one of the following can produce hydrogen when treated with metallic sodium? Show Answer


Q884) Organic compounds are studied separately from inorganic compounds because: Show Answer


Q885) Give IUPAC name of the product, when acetamide is heated with anhydrous phosphorus pentoxide. Show Answer


Q886) Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine. Show Answer


Q887) When a ketone is condensed into an aldol, the reagent used is: Show Answer


Q888) Which of the following acids (1 mol) does not give cyclic anhydride on heating Show Answer


Q889) Which of the aldehyde is most reactive? Show Answer


Q890) Which of the following is present in tea as well as in bark of a tree? Show Answer


Q891) Waxes are long chain compounds belonging to the class: Show Answer


Q892) Which of the following is correct for carbonyl compounds? Show Answer


Q893) Which of the following has most acidic hydrogen? Show Answer


Q894) Amino acid usually exists in the form of Zwitter ions, which consists of: Show Answer


Q895) Which of the following do not form addition compounds with ammonia? Show Answer


Q896) Etard’s reaction involves the preparation of benzaldehyde from Show Answer


Q897) The Hell-Volhard-Zelinsky reaction is used for preparing Show Answer


Q898) Aldehydes on reaction with hydroxylamine gives : Show Answer


Q899) When an aldehyde was heated with alkali, a part of it was converted into alcohol and a part of it into an acid. The aldehyde is: Show Answer


Q900) The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is: Show Answer


Q901) Acetone is used in: Show Answer


Q902) The conversion of benzaldehyde into benzyl alcohol takes place by Show Answer


Q903) What is the oxidation number of carbonyl carbon in acetophenone? Show Answer


Q904) Acetic acid on heating with urea gives: Show Answer


Q905) In sodium extract test of organic compounds, the nitrogen of an organic compound is converted into: Show Answer


Q906) At the isoelectric point for amino acid the species present are: Show Answer


Q907) Stinges of bees, red ant and wasps contain: Show Answer


Q908) A colourless organic compound gives brisk effervescences with a mixture of sodium nitrite and dil. HCl. It could be Show Answer


Q909) Which of the following on oxidation gives an acid containing two carbon atoms? Show Answer


Q910) Which of the following has highest b.p.? Show Answer


Q911) Alkaline hydrolysis of an ester is called: Show Answer


Q912) The reagent used in Gattermann Koch aldehyde synthesis is Show Answer


Q913) Which is false in case of carboxylic acids? Show Answer


Q914) Acetyl chloride cannot be obtained by treating acetic acid with: Show Answer


Q915) Carbonyl compounds react with phenyl hydrazine to form: Show Answer


Q916) Formic acid is obtained when: Show Answer


Q917) Benedict’s solution is not reduced by Show Answer


Q918) Vinegar is Show Answer


Q919) Which will not give acetamide (no heating) on reaction with ammonia? Show Answer


Q920) Jone’s reagent is: Show Answer


Q921) Trans esterification is the process of Show Answer


Q922) The formation of aldehyde from alkyl cyanide is related with the name Show Answer


Q923) Treatment of propionaldehyde with dil. NaOH gives: Show Answer


Q924) Which of the following organic compounds answers to both iodoform test and Fehling’s test? Show Answer


Q925) In steam distillation, the vapour pressure of the volatile organic compound is: Show Answer


Q926) The correct order of acid strength is: Show Answer


Q927) The ration of carbon, hydrogen and oxygen in 2-methyl benzoic acid is: Show Answer


Q928) Oxalic acid, malonic acid and succinic acid can be distinguished by: Show Answer


Q929) In Kjeldahl’s method nitrogen present is quantitatively converted to: Show Answer


Q930) Propionic acid and KOH reacts to produce which one of the following? Show Answer


Q931) Anhydrous formic acid cannot be obtained from aqueous solution by fractional distillation because: Show Answer


Q932) In lassaigne’s test when both N and S are present, blood red colour obtained is due to the formation of: Show Answer


Q933) Which compounds will not reduce Fehling’s solution? Show Answer


Q934) Which of the following compounds is oxidized to prepare methyl ethyl ketone? Show Answer


Q935) An organic compound is boiled with alcoholic potash. The product is cooled and acidified with HCl. A white solid separates out. The starting compound may be Show Answer


Q936) The substance used as an adsorbent in the column chromatography is: Show Answer


Q937) Saturated fatty acids are represented by which of the formula? Show Answer


Q938) Clemmensen reduction of a ketone is carried out in the presence of which of the
following?
Show Answer


Q939) Which of the following diacid readily gives anhydride on heating? Show Answer


Q940) For detection of sulphur in an organic compound, sodium nitroprusside is added to the sodium extract. A violet colour is obtained due to the formation of: Show Answer


Q941) Which of the following acids has the smallest dissociation constant? Show Answer


Q942) In the conversion of Grignard reagent into an aldehyde, the other component used in Show Answer


Q943) Which of the following statements regarding amides is not correct? Show Answer


Q944) Maleic and fumaric acids: Show Answer


Q945) Sodium extract prepared by using thio urea contains which ion in the solution, mainly responsible for a characteristic test? Show Answer


Q946) The property which distinguishes formic acid from acetic acid is Show Answer


Q947) Absolute alcohol is prepared from rectified spirit by: Show Answer


Q948) Which of the following gives oxalic acid? Show Answer


Q949) Urea on slow heating gives Show Answer


Q950) The conversion of acetophenone to acetanilide is best accomplished by using Show Answer


Q951) An aldehyde which undergoes Cannizzaro’s reaction and reduces Schiff’s reagent but does not reduce Fehling’s solution is: Show Answer


Q952) Which acid is used in baking powder? Show Answer


Q953) Which of the following statements are correct for benzoic acid? Show Answer


Q954) General formula of carbonyl compound is: Show Answer


Q955) Formic acid and acetic acid are distinguished by Show Answer


Q956) Which of the following types of carbonyl groups will produce oxime on reaction with? Show Answer


Q957) Aldehydes and ketones can be reduced to hydrocarbon by using Show Answer


Q958) Industrial preparation of formic acid involves: Show Answer


Q959) Vinegar is a solution of acetic acid which is Show Answer


Q960) Which of the following is the strongest acid? Show Answer


Q961) Which of the following has high vapour pressure at temperature below its melting point? Show Answer


Q962) Tollen’s reagent is Show Answer


Q963) The Sulphur present in an organic compound is oxidized by fuming nitric acid into: Show Answer


Q964) Aldol condensation of aldehydes and ketones takes place through the formation of: Show Answer


Q965) Acetic anhydride reacts with ammonia to give: Show Answer


Q966) Petroleum refining involves: Show Answer


Q967) Which of the following will not undergo Hell Volhard Zelinsky reaction? Show Answer


Q968) Which of the following will not undergo aldol condensation? Show Answer


Q969) In a compound C, H and N are present in 9 : 1 : 3.5 by weight. If molecular weight of the compound is 108, the molecular formula of compound is: Show Answer


Q970) Which method is not used in the preparation of ketone? Show Answer


Q971) The reagent which does not give acid chloride on treating with a carboxylic acid is Show Answer


Q972) Separation of petroleum into its components is mostly done by: Show Answer


Q973) The product formed in the aldol condensation of acetaldehyde is Show Answer


Q974) Formaldehyde when treated with KOH gives methanol and potassium formate. The reaction is known as: Show Answer


Q975) The reagent with which both acetaldehyde and acetone react is Show Answer


Q976) The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits Show Answer


Q977) Which of the following orders is wrong with respect to property indicated? Show Answer


Q978) Organic compounds are studied separately from others, because: Show Answer


Q979) Aldehydes are first oxidation product of: Show Answer