Practice Test


1) Which of the following has maximum boiling point?


2) When calcium benzoate is distilled with calcium formate, the product is


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


4) Benzamide on heating with bromine and caustic alkali gives


5) Acetyl chloride on treating with ammonia gives


6) Which of the following does not give silver mirror test?


7) Ammonium acetate on heating gives


8) Distillation of sodium salt of benzoic acid with soda lime gives.


9) Which of the following is the weakest acid?


10) Methanoic acid is manufactured by the reaction of carbon monoxide and


11) Primary amides reacts with nitrous acid to give


12) When acetamide is treated with nitrous acid, it gives


13) When benzamide is heated with thionyl chloride, it gives


14) Ethyl benzoate reacts with ammonia to give


15) Which of the following functional derivatives of carboxylic acid is least soluble in water?


16) Decarboxylation of sodium benzoate on heating with soda lime gives


17) Acetophenone on reduction with Zn | Hg and HCl gives


18) Which of the following has highest boiling point?


19) Salicylic acid on heating with soda lime (CaO + NaOH) gives


20) Ammonia reacts with acetic anhydride to give


21) Which acid is present in vinegar?


22) Sodium acetate and acetyl chloride react to give


23) When calcium formate is distilled with calcium acetate, the product is:


24) Carboxylic acids are reduced by red P and HI to


25) Calcium acetate on distillation gives


26) Acetamide is


27) Formic acid and acetic acid may be distinguished by the reaction with


28) The weakest acid among the following is


29) Ethyl benzoate is hydrolysed in the presence of NaOH to


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


31) Which of the following compounds would react easily with sodium?


32) Oxalic acid when reduced with zinc and dilute sulphuric acid gives.


33) Amides may be converted into amines by reaction named after


34) When acetamide is hydrolysed by boiling with acid, the product is:


35) Which of the following acid occurs in ants?


36) Hydrolysis of HCN gives


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


38) Hydrolysis of methyl cyanide gives


39) Electrolysis of concentrated aqueous solution of an alkali salt of fatty acid gives


40) Which of the following does not contain carboxyl group?


41) Acetic anhydride is obtained from acetyl chloride by the reaction of


42) Which of the following groups will decrease the acidic strength of parent acid?


43) Which of the following compounds gives ethylamine on Hofmann bromide reaction?


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


45) 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


46) Methyl magnesium chloride on reaction with acetyl chloride gives


47) When ethanamide is boiled with aqueous NaOH, the gas evolved is:


48) The weakest acid among the following is


49) The carboxylic acid which does not undergo Hell vohlard zelinsky reaction is


50) Sodium ethoxide reacts with ethylacetate to give


51) Acetic acid is obtained when


52) The chemical name of glycine is


53) Benzamide reacts with nitrous acid with the evolution of


54) Phenol and benzoic acid may be distinguished by their reaction with


55) What makes a lemon sour?


56) A useful derivative to identify carboxyllic acids is:


57) Which of the following is polyprotic acid?


58) Hydrolysis of benzonitrile gives


59) Which of the following cannot reduce Fehling solution?


60) Acetic anhydride is obtained by the reaction of


61) The reaction of acids with alcohols is called


62) Tartaric acid on oxidation with nitric acid gives


63) Decarboxylation of monocarboxylic acids can be carried out by


64) Hydrolysis of esters in alkaline medium is known as


65) Which of the following cannot be obtained from tartaric acid?


66) Which of the following is not a fatty acid?


67) Which of the following is not a dicarboxylic acid?


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


69) Reduction of lactic acid with excess of HI gives


70) Vinegar made from cane sugar now - a - days synthetically contains


71) Formic acid and acetic acid may be distinguished by the action with


72) Formic acid is obtained when


73) Hydrolysis of HCN gives


74) An aliphatic hydroxy acid is:


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


76) Which of the following acids is most reactive towards esterification with cyclohexanol?


77) Which of the following is most reactive towards water?


78) Acetyl chloride reacts with methyl amine to give


79) When acetic acid reacts with calcium, a gas is evolved. The gas is :


80) Which of the following is weaker acid than benzoic acid?


81) The compound formed when malonic ester reacts with urea is:


82) Acetamide reacts with NaOBr in alkaline medium to form


83) Strongest acid among the following is:


84) In the preparation of an ester, the commonly used dehydrating agent is:


85) Methyl group attached to benzene can be oxidised to carboxyl group by reacting with


86) Saponification of coconut oil yields glycerol and


87) On strong heating ammonium acetate gives


88) Grignard reagent and ethyl acetate reacts to give


89) Which of the following will not form hydrocarbon on soda lime decarboxylation?


90) Pyruvic acid is obtained by


91) Oleic acid is present in


92) Which of the following acids has the smallest dissociation constant?


93) When acetic acid reacts with ketone, the product formed is


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


95) Which reagent will bring about the conversion of carboxylic acids into esters?


96) Benzoic acid may be converted to ethyl benzoate by reaction with


97) Saponification of ethyl benzoate with caustic soda as alkali, gives


98) What reagent is used in the preparation of chloroacetic acid from acetic acid?


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


100) Amongst the following the strongest acid is


101) Melting points are normally the highest for


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


103) Decarboxylation of malonic acid gives


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


105) Carboxylic acids dissolve in aq. NaOH because the acids undergo


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


107) Vinegar obtained from sugarcane has


108) X is heated with soda lime and gives ethane X is


109) The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of:


110) A hydroxy acid on heating gives a 5 - membered lactone. The acid is


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


112) The acid showing salt like structure in aqueous solution is


113) Oximes are formed by the reaction of aldehydes and ketones with :


114) The formation of cyanohydrin from ketone is an example of


115) The Cannizzaro's reaction is not given by


116) Acrylic acid reacts with HBr to give


117) The strongest acid among the following is:


118) Which of the following is weakest acid?


119) At the isoelectric point for amino acids, the species present are:


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


121) Which aromatic acid among the following is weaker than simple benzoic acid?


122) Which of the following most readily undergoes hydrolysis?


123) 4 - Methyl benzene sulphonic acid reacts with sodium acetate to give:


124) Which of the following is the weakest acid?


125) Butanal undergoes aldol condensation to give:


126) Which of the following carboxylic acids undergoes decarboxylation easily?


127) n - Chlorobenzaldehyde on reaction with conc. KOH at room temperature gives:


128) Acetamide reacts with NaOBr in alkaline medium to form


129) Carboxylic acids are reduced by red P and HI to:


130) Which of the following has highest boiling point?


131) Which of the following ester does not undergo Claisen - self condensation?


132) Salicyclic acid on heating with soda lime (CaO + NaOH) gives:


133) Acetyl chloride is reduced to acetaldehyde by


134) Which of the following will not undergo Hell Vohard Zelinsky reaction:


135) The product obtained by reaction of PhCHO and MeCHO medium are:


136) On heating calcium acetate and calcium formate, the major product formed is


137) Calcium acetate when dry distilled gives


138) Silver mirror is a test for


139) Ketone react with Mg-Hg over water to give


140) Which does not react with Fehling solution ?


141) Aldehydes are produced in atmosphere by


142) Iso- Propyl alcohol on oxidation forms


143) Which of the following compounds will show positive silver mirror test ?


144) Benzyl alcohol is obtained from benzaldehyde by


145) Which of the following is hypnotic ?


146) Formalin is an aqueous solution of


147) In nucleophilic addition reactions the reactivity of carbonyl compounds follows order


148) Which of the following statement about benzaldehyde is not true ?


149) Oxidation of Butan-2-one can be achieved by


150) At room temperature formaldehyde is


151) Which of the following reagents is used to distinguish acetone and acetophenone ?


152) Acetone is prepared by


153) Which reaction yields Bakelite ?


154) Cyanohydrin of which of the following forms lactic acid ?


155) Acetalehdye cannot exhibit


156) Lacrymator or Tear gas is


157) Aldol condensation will not occur in


158) Chromyl chloride and toluene react to produce


159) Which of the following react with NaOH to produce an acid and an alcohol ?


160) 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 ?


161) Which of the following gives aldol condensation reaction ?


162) Acetone reacts with Grignard Reagent to form


163) Which is not true about acetophenone ?


164) Tautomerism is not exhibited by


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


166) Tollen's reagent is


167) Schiff's reagent is


168) Which of the following compounds gives a ketone with Grignard's reagent ?


169) Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon ?


170) Which of the following aldehydes can give Cannizzaro reaction with base ?


171) Wolff -Kishner reduction is used for the reduction of


172) Formaldehyde when reacted with methyl magnesium bromide gives


173) Clemmensen's reduction of ketones is carried out in presence of


174) Aldol condensation will not be observed in


175) Which of the following is incorrect ?


176) Which one of the following pairs is not correctly matched ?


177) Paraldehyde is a trimer of


178) Aniline reacts with which of these to form Schiff's base ?


179) Concentrated sodium hydroxide and Benzaldehyde react to produce


180) Aldehydes and ketones do not give addition reaction with


181) Which of the following reactions is used for detecting presence of carbonyl group ?


182) The final product formed when acetaldehyde is reduced with sodium and alcohol is


183) On heating acetaldehyde with ammoniacal silver nitrate solution, we get


184) The compound obtained by the reduction of propionaldehyde by amalgamated zinc and concentrated HCl is


185) Which of the following does not react with phenyl hydrazine ?


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


187) Benzaldehyde reacts with methyl amine to give


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


189) Reductive ozonolysis of benzene produces


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


191) Propanal on treatment with dilute sodium hydroxide forms


192) The reagent used for the separation of acetaldehyde from acetophenone is


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


194) Which is a mixed ketone ?


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


196) Self condensation of acetaldehyde in the presence of dilute alkalies gives


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


198) Cannizzaro reaction is not given by


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


200) Acetal is produced by reacting alcohol in the presence of dry HCl with


201) The reaction of acetaldehyde with HCN followed by hydrolysis gives a product which exhibits


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


203) Which of the following has most acidic proton ?


204) Which of the following aldehydes is most reactive towards nucleophilic addition reactions ?


205) The addition of HCN to carbonyl compounds is an example of


206) Oxidation of toluene to benzaldehyde by the use of chromyl chloride is called


207) Which of the following organic compounds exhibits positive Fehling test as well as iodoform test ?


208) Benzophenone can be converted into benzene using


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


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


211) 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


212) The reagent with which both aldehydes and ketones react is


213) Which of the following compounds is oxidised to prepare ethyl methyl ketone ?


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


215) The compound that will not give iodoform on treatment with alkali and iodine is


216) In a Cannizzaro reaction, the intermediate that will be best hydride donor is


217) which of the following will react with water ?


218) Which of the following has the most acidic hydrogen ?


219) Which of the following will be most readily dehydrated in acidic conditions ?


220) A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives


221) Aldehydes and ketones cannot be distinguished by


222) The order of susceptibility of nucleophilic attack on aldehydes follows are order


223) Acetaldehyde and acetone can be distinguished by


224) Which of the aldehydes is most reactive ?


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


226) The compound which does not give aldol condensation is


227) Which of the following contains ketene group ?


228) Which of the following reagent is used in Clemmensen's reduction ?


229) How will you convert butan-2-one to propanoic acid ?


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


231) Formic acid is obtained when


232) Acetic acid is manufactured by the fermentation of


233) Acid present in tomatoes is


234) Cyanohydrin of which of the following forms lactic acid


235) The acid showing salt like character in aqueous solutions is


236) Hydrolysis of trichloromethane with aqueous KOh gives


237) Which of the following cannot reduce Fehling's solution ?


238) Glacial Acetic acid is


239) Acetic acid is obtained when


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


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


242) Toluene can be oxidised to benzoic acid by


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


244) Formic acid and acetic acid differ in which of the following respect ?


245) Which of the following reactions gives violet colour and neutral ferric chloride ?


246) Which of the following is the strongest acid ?


247) Which of the following orders of relative strengths of acids is correct ?


248) Which of the following is the weakest acid ?


249) Which one of the following orders of acid strength is correct ?


250) Sulphonation of benzoic acid produces mainly


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


252) Vinegar obtained from sugarcane is


253) The weakest acid among the following is


254) Which of the following compounds will evolve hydrogen on treatment with Na metal ?


255) The reagent that can be used to distinguish between phenol and ethanoic acid is


256) Which of the following does not undergo Hell-Volhard Zelinsky reaction ?


257) Which one of the following is a strong reducing agent


258) Which of the following is least acidic ?


259) Weakest acid among the following is


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


261) Lower carboxylic acids are soluble in water due to


262) Dimerisation in carboxylic acid is due to


263) Glacial acetic acid is obtained by


264) Pick out the unsaturated fatty acid from the following


265) Lactic acid on oxidation by alkaline potassium permanganate gives


266) Carboxylic acids are more acidic than phenol and alcohol because of


267) Identify the wrong statement from the following


268) Which of the following compounds will be optically active ?


269) Among the following the strongest acid is


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


271) Oxidation of Butan-2-one to propionic acid can be achieved by


272) The major product of nitration of Benzoic acid is


273) Which of the following compounds give benzoic acid on oxidation ?


274) Which of the following carboxylic acids undergoes decrboxylation easily ?


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


276) Which of the following acids has the smallest dissociation constant ?


277) Acetyl chloride can not be obtained by treating acetic acid with


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


279) Ethyl alcohol reacts with alcohol chloride to form


280) Which will not give acetamide on reaction with ammonia ?


281) Which reagent will bring about the conversion of carboxylic acids into esters ?


282) Melting points are normally the highest for


283) When acetamide is hydrolysed by boiling with acid the product obtained is


284) The order of decreasing ease of reaction with ammonia is


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


286) Which of the following compounds is resistant to nucleophilic attack by hydroxyl ion ?


287) Acetic anhydride is obtained from acetyl chloride by the reaction of


288) Which of the following undergoes hydrolysis ?


289) Saponification of ethyl benzoate with caustic soda as alkali, gives


290) The group present in waxes is


291) Aspirin is


292) Which of the following compounds is the reactant in Rosennund's reduction ?


293) Ethyl acetate is obtained when methyl magnesium iodide reacts with


294) Acetamide is


295) The silver salt of a fatty acid on refluxing with an alkyl halide gives an


296) 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


297) Rearrangement of an oxime to an amide in the presence of strong acid is called


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


299) Which of the following compounds is amphoteric in nature ?


300) 4-Methylbenzenesulphonic acid reacts with sodium acetate to give


301) When salicylic acid is treated with acetic anhydride we get


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


303) Acids are formed by the reaction of Grignard reagents on


304) HCHO and HCOOH are detected by


305) Which of the most reactive towards nucleophilic substitution among acid derivatives ?


306) 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


307) 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


308) 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


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


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


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


312) 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


313) On heating with aqueous alkali, chloroform yields:


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


315) Methylene chloride on hydrolysis yields:


316) Which of the following compounds does not have a carboxyl group?


317) 2,4-dichlorophenoxy acetic acid is used as a:


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


319) 3-pentanol on reaction with aluminium tertiary butoxide in the presence of acetone gives


320) The silver salt of a fatty acid on refluxing with an alkyl halide gives an


321) Acetalsehyde reacts with:


322) Which of the following statement is correct?


323) The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is


324) The catalyst used in Rosenmund reaction is


325) Claisen condensation is not given by


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


327) Tamarind contains


328) The splitting of an ester by an alcohol is known as:


329) The product formed when hydroxylamine condenses with a carbonyl compound is called


330) The nitrogen content in the proteins can be quantitatively estimated by:


331) Correct order of reducing power of the following carbonyl compounds


332) Ethyl acetate on reaction with a Grignard reagent gives,


333) Acetaldehyde reacts with HCN followed by hydrolysis forms a compound which shows:


334) Carboxylic acids dissolve in aq. NaOH because the acids undergo:


335) Which of the acids cannot be prepared by Grignard reagent?


336) 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


337) Urea can be detected by


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


339) Which of the following statements is wrong?


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


341) An organic substance from its aqueous solution can be separated by:


342) The strongest acid amongst the following compounds is


343) Reaction of formaldehyde and ammonia gives


344) 4-methyl benzene sulphonic acid reacts with sodium acetate to give


345) Generally it is more difficult to purify organic compounds than inorganic compounds because:


346) The acetophenone can be converted to ethylbenzene by reaction with


347) Boiling points of carboxylic acid are:


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


349) Which of the following would produce secondary alcohol?


350) 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.


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


352) Which of the following does not undergo polymerization?


353) Methyl ketones are characterised through:


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


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


356) Decarboxylation of malonic acid gives


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


358) Acetyl nitrate is formed when acetic anhydride reacts with


359) Which one is not prepared from tartaric acid?


360) The reagent used in Clemmensen’s reduction is


361) The technique of gas chromatography is suitable for compounds which are:


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


363) What is the formula of adipic acid?


364) Acrolein on complete reduction gives:


365) Which one of the following is not a fatty acid?


366) Tartronic acid is obtained from tartaric acid by:


367) 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


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


369) 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:


370) Potassium cyanate is heated with ammonium sulphate. The product formed is


371) 2-pentanone and 3-petanone can be distinguished by


372) Formalin is


373) Aldol condensation is given by


374) Which reaction is used for detecting the presence of carbonyl group?


375) 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:


376) Acid chlorides react with Grignard’s reagents to give:


377) Which of the following give an explosive RDX, on nitration?


378) Acetaldehyde forms a white crystalline precipitate on mixing with a …..solution of ….


379) Fehling’s solution is:


380) Stephen’s reduction is used to prepare aldehyde from


381) Benzyl alcohol can be prepared from benzaldehyde by


382) Ammonolysis of an ester gives:


383) Acetic anhydride can easily be prepared by:


384) Oppenauer oxidation is the reverse process of:


385) A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives


386) Decarboxylation of which will yield 1,1,2,2-tetra bromoethane:


387) Fehling’s solution is used in the detection of:


388) Butanol on reaction with one of the following will produce banana odour:


389) Some organic compounds are purified by distillation at low pressure because the compounds are:


390) Calcium propanoate on refluxing yields:


391) Aldehyde not showing Cannizaro’s reaction is


392) Methyl cyanide can be converted into acetic acid by:


393) The main reason for the fact than carboxylic acids can undergo ionization is:


394) Acetamide reacts with maximum ease with:


395) Formalin is the commercial name of


396) The weakest acid amongst the following is


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


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


399) Simple distillation can be used to separate:


400) Aldol condensation between the following compounds followed by dehydration gives methyl vinyl ketone:


401) Prior to the seventeenth century people knew the processes except:


402) Molecular weight of acetic acid is 60. Its empirical formula is:


403) Ketones can be obtained in one step by:


404) The scientist who gave chromatography concept:


405) Nucleophilic addition reaction will be most favoured in:


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


407) The identical C—O bond lengths in carboxylate ions are due to:


408) Which one of following can be oxidised to the corresponding carbonyl compound?


409) A compound does not react with 2, 4 dinitrophenyl hydrazine, compound is


410) 13 g of a hydrocarbon contains 1.0 g of hydrogen. Its formula is:


411) 2-pentanone and 3-pentanone can be distinguished by one of the following:


412) Ethyl acetate is obtained by acetaldehyde in one step process by


413) On reaction with hydroxylamine, aldehydes produce


414) The solvent which can dissolve all the carboxylic acids is:


415) 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:


416) Acetone and acetaldehyde can be distinguished by


417) Hydroxamic acid test is employed to detect


418) Conversion of benzaldehyde to 3-phenylprop-2-en-1-oic acid is


419) Dry distillation of calcium formate and subsequent treatment with conc KOH gives the mixture of


420) The main component of oil of winter green is


421) Acetic acid is manufactured by the fermentation of:


422) Which is/are hydroxy acid (s)?


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


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


425) Which is used as a preservative for biological specimens?


426) Carbon forms a very large number of compounds because:


427) Which of the following does not give HVZ reaction?


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


429) Wolff-Kishner’s reaction is:


430) Aldehydes and ketones both give addition reaction with:


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


432) Which of the following will undergo Cannizzaro’s reaction?


433) Long chain carboxylic acids are called fatty acids because:


434) Which of the following reagents can form a hydrazone with alkanone?


435) Which of the following will react with water?


436) Ketones are first oxidation product of:


437) Which does not react with Fehling’s solution?


438) Amides are formed by the reaction of acid chloride with


439) The product formed in aldol condensation is:


440) Tartaric acid is not used in :


441) Salt can be obtained from a concentrated seawater by:


442) Liquid obtained by distillation of red ant is


443) Monocarboxylic acids show functional isomerism with :


444) Semicarbazide is:


445) Which statement is correct?


446) Which gives lactic acid on hydrolysis after reacting with HCN?


447) Which of the following will give readily a hydrocarbon?


448) Base catalysed aldol condensation occurs with:


449) When formaldehyde is heated with ammonia the compound formed is:


450) The reaction of acetamide with water is an example of:


451) The most acidic among the following is:


452) Which of the following compounds neither forms semicarbazone nor oxime?


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


454) Paraldehyde is:


455) Calcium formate on distillation gives


456) Alkaline hydrolysis of 1,1-dichloroalkane yields:


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


458) Which of the following carboxylic acids undergoes decarboxylation easily?


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


460) The weakest acid among the following is:


461) Reaction of acid with alcohols is also known as


462) A mixture of water and NaCl can be separated by:


463) Which halo acid gives cyclic ester on treatment with aq.NaOH?


464) Which reduces carboxylic acid directly to primary alcohols?


465) Which of the product is formed when acetone is reacted with barium hydroxide solution?


466) The formation of cyanohydrin from a ketones is an example of:


467) Aldehyde are the first oxidation product of


468) Urea is preferred to ammonium sulphate as a nitrogenous fertilizer because


469) Boiling point of acetone is:


470) Which of the following is correct?


471) Acetone may be produced from starch by the action of:


472) Benzaldehyde condense with acetaldehyde to produce


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


474) Treatment of acetaldehyde with ethyl magnesium bromide and subsequent hydrolysis gives:


475) Kjeldahl’s method cannot be used for the estimation of nitrogen in:


476) Formaldehyde is not used in:


477) Acetic acid will be obtained on oxidation of


478) Acetamide is


479) Which reagent can convert acetic acid into ethanol?


480) Which reaction, intermediate is formed during the condensation reaction between acetaldehyde and formaldehyde?


481) Which of the following on heating with aqueous KOH, produces acetaldehyde?


482) Which carbonyl compound does not undergo aldol condensation?


483) Which of the following has most acidic proton?


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


485) Which one is a polyprotic acid?


486) Halogens can be estimated by:


487) Ethyl isocyanide on acidic hydrolysis generates


488) Which would undergo aldol condensation?


489) Aldehydes can be oxidised by


490) Which can be oxidised to the corresponding carbonyl compound?


491) Which of the following acids combines the properties of acid and aldehyde?


492) Stephen’s reaction is reduction of:


493) Dry distillation of barium salt of Hexane-1,2-dicarboxylic acid gives:


494) Which is liquid at room temperature?


495) The key step in Cannizaro’s reaction is the intermolecular shift of


496) Osazone formation is used to characterise:


497) Acetic acid vapours when passed over aluminium phosphate forms:


498) 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:


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


500) Which of the following would undergo Hofmann reaction to give a primary amine?


501) In kjeldahl’s method, nitrogen present is estimated as:


502) Correct order of reactivity of acid derivatives towards a nucleophile is


503) Methylethyl ketone can be reduced to n-butane by


504) Which statement is incorrect in the case of acetaldehyde and acetone?


505) Acetone is used:


506) Which of the following will form two isomers with semi carbazide?


507) First Noble Prize winner in chemistry is:


508) Which cannot be used as acylating agent?


509) With hot conc. KOH brown black resinous product is given by:


510) Acetamide and ethyl amine are distinguished by reacting with


511) General formula of saturated carboxylic acid is:


512) The reagent which can be used to distinguish acetophenone from benzophenone is :


513) Acetaldehyde is not obtained in the reactions


514) The acid present in tomatoes is:


515) Cross aldol condensation occurs between


516) Which method cannot be used for purification of liquids?


517) Aniline is purified by:


518) 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:


519) The IUPAC name of acrolein is:


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


521) The reagent with which both acetaldehyde and acetophenone react easily are


522) Formaldehyde gives an additive product with methyl magnesium iodide which on aqueous hydrolysis gives:


523) The compound that doesn’t undergo aldol condensation


524) Which of the following products is formed when adipic acid is heated?


525) A silver salt of fatty acid on heating with an alkyl halide gives:


526) For hydrolysis of the following functional groups, the decreasing order of reactivity is:


527) Aldehyde used in the manufacture of perfumes is:


528) When sodium formate is heated it gives:


529) In esterification, the reactivity of alcohols is:


530) Separation of organic compounds by column chromatography is due to:


531) Cannizzaro’s reaction involves:


532) An aldehyde can be distinguished from a ketone by the use of the reagent:


533) Aldol condensation between the following compounds followed by dehydration gives methyl vinyl ketone:


534) Which can be used to distinguish aldehydes and ketones?


535) The important step in Cannizzaro’s reaction is the intermolecular shift of:


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


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


538) Formalin is:


539) Chloral belongs to the class of:


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


541) Which gives positive haloform test and positive Fehling’s solution test?


542) Acetone when saturated with dry acid gives:


543) Aceto acetic ester behaves as:


544) The correct order of acidic strengths of the carboxylic acids is


545) Carboxylic acids react with diazomethane to yield:


546) Tamarind contains:


547) Which of the following, compounds is the reactant in Rosenmund’s reduction?


548) Aldol condensation will not take place in


549) The reagent with which both acetaldehyde and acetone react easily is:


550) Which of the following is hydroxy acid?


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


552) Amides may be converted into amines by reaction named after:


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


554) Which of the following is the strongest acid?


555) In Lassaigne’s test sodium metal is used because:


556) 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:


557) Which of the following is an example of aldol condensation?


558) Aldehydes behave as:


559) Acetone is prepared by:


560) Benzaldehyde gives a positive test with


561) Vinegar contains:


562) Acetaldehyde is the rearrangement product of:


563) When sodium extract is prepared, generally the substance ignites:


564) The compound which forms acetaldehyde when heated with dilute NaOH, is


565) Tollen’s reagent is:


566) Which structural unit is possessed by aldehyde and not ketone?


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


568) Formaldehyde polymerises from 6 to 100 molecules to form:


569) Magenta is:


570) Aldehyde which is formed during photosynthesis of plants is


571) Which of the following carboxylic acids undergoes decarboxylation easily?


572) Ink stains can be removed from clothes by treating them with:


573) Identify ‘acetaldoxime’


574) Benzaldehyde and acetaldehyde can be distinguished by:


575) Lactic acid extracted from muscles is:


576) Phenol is soluble in:


577) Reactions between organic compounds are generally slow because they are:


578) Lemon gives sour taste because of


579) On warming formic acid with ammoniacal silver nitrate, the product formed is:


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


581) Maximum percentage of chlorine is in:


582) Which of the following aldehydes give red precipitated with Fehling solution?


583) Pinacole is:


584) A mixture of calcium acetate and calcium formate on heating gives:


585) Which of the following can be used to differentiate between aldehyde and ketone?


586) 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:


587) A ketone on reduction gives:


588) Which is least soluble in water?


589) Acetals are:


590) Hexamethylene tetramine is used as an:


591) Which of the following gives an aldehyde on dry distillation?


592) Which aldehyde cannot be obtained by Rosenmund’s reaction?


593) Which is tribasic acid?


594) Which of the following on heating with aqueous KOH, produces acetaldehyde?


595) Fruits are preserved by using:


596) Ketones can be prepared by:


597) The percentage of nitrogen in urea is about:


598) Collin’s reagent is used to convert


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


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


601) How will you convert butan-2-one to propanoic acid?


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


603) Which product is obtained on reduction of methanal in the presence of concentrated NaOH?


604) Which of the following doesn’t give Fehling solution test?


605) Which gives smell of burnt sugar on charring?


606) Hydrated oxalic acid contains:


607) Cacodyl test is used for identification of:


608) During hydrogenation of oils vegetable ghee is formed. In this process:


609) Formaldehyde can be distinguished from acetaldehyde by the use of:


610) Which of the following carbonyl compounds on condensation gives an aromatic compound?


611) Mild oxidation of carboxylic acids occurs at…….position.


612) Almost all amides exist in:


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


614) The end products in the Cannizaro reaction of benzaldehyde is


615) Turpentine oil can be purified by:


616) Elements found in explosive are:


617) Which acid forms Zwitter ions?


618) Acetaldehyde cannot show


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


620) 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:


621) Weakest acid among the following is:


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


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


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


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


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


627) The relation of the isoelectric point for an amino acid to solubility is:


628) The discovery that shocked the vital force theory was:


629) A mixture of camphor and NaCl can be separated by:


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


631) In Tischenko’s reaction an aldehyde is heated with catalyst:


632) Distillation under reduced pressure in principle resembles with:


633) Which of the following does the best represent the structure of the carboxylate ion?


634) Acetic acid is obtained when:


635) Acetophenone is used in:


636) In organic compounds sulphur is estimated as:


637) Malonic acid and succinic acid are distinguished by:


638) Pleasant odours of common fruits is due to:


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


640) The acid showing salt like structure in aqueous solution is:


641) Cannizaro reaction is given by


642) 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?


643) Chromatographic techniques of purification can be used for:


644) Decarboxylation of malonic acid gives:


645) Which of following reactions convert acetone into hydrocarbon having same number of carbon atoms?


646) Fruity smell is given by


647) Hydrolysis of HCN gives:


648) Which of the following is an example of aldol condensation?


649) Benedict’s solution provides:


650) The Cannizaro reaction is not given by


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


652) Doctors detect diabetes disease by testing the presence of glucose in urine with :


653) Which reaction is used for the preparation of acetophenone?


654) Carbonyl group undergoes:


655) Carbon shows maximum capacity of catenation because:


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


657) Acetals are


658) Azeotropes are:


659) The name glacial acid is given to pure acetic acid:


660) The IUPAC name of tartaric acid is:


661) The IUPAC name of caproic acid is:


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


663) Acetaldehyde is used:


664) Ethanal reacts with alkali to give 3-hydroxybutanal. This reaction is:


665) When acetic acid is dissolved in benzene its molecular mass:


666) Chloral is prepared industrially by the chlorination of:


667) Paraldehyde is used as a:


668) Ketones are prepare by:


669) The correct sequence of decreasing order of reactivity of hydrolysis of acid chlorides is


670) Nitration of salicylic acid will give:


671) 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)


672) A powerful sedative made from acetaldehyde is:


673) 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


674) Acetic anhydride is prepared in the laboratory by heating sodium acetate with


675) The acid which contains the aldehyde group is


676) When acetyl chloride reacts with any amine, the reaction is known as:


677) Fehling solution is


678) Formaldehyde can be manufactured from:


679) The boiling and melting points of carboxylic acids depend on:


680) Which of the following does not undergo Cannizaro’s reaction?


681) The strongest acid amongst the following compound is:


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


683) Which of the following statements is correct about a carbonyl group?


684) Formaldehyde and formic acid can be distinguished by:


685) Oxidation of which compound is not possible?


686) Which type of isomerism is not common in carboxylic acid?


687) Which one of the following will undergo meta-sustitution on monochlorination?


688) When acetamide is hydrolysed by boiling with acid, the product obtained is


689) Lemon is sour due to:


690) Both acetaldehyde and ketone react with:


691) Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields:


692) Electrolytic reduction with lead cathode of oxalic acid yields:


693) Benzaldehyde and acetone can be best distinguished using


694) Which of the following statements is/are correct?


695) Which of the following reaction is a condensation reaction?


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


697) In a Cannizaro reaction, the intermediate that will be best hydride donor is


698) 0.58 g of hydrocarbon on combustion gave 0.9 g water. The percentage of carbon is about :


699) Which is the most reactive of the following?


700) When acetamide is hydrolysed by boiling with acid, the product formed is:


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


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


703) 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


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


705) 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


706) At room temperature formaldehyde is :


707) Positive Beilstein test shows that:


708) Among the following, the most acidic is


709) Acetyl chloride is reduced to acetaldehyde by:


710) The compound having least solubility in water is:


711) 2-bromopropanoic acid when heated with alcoholic KCN gives an organic compound which on further acid hydrolysis gives the compoundA. Hence, A will be:


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


713) In organic chemistry the element which is estimated by difference:


714) In estimation of carbon and hydrogen, the saphnolite resin absorbs:


715) Which reaction is suitable for the preparation of α-chloroacetic acid?


716) A fractionating column is used in:


717) Ni formate is best used as catalyst in:


718) The term carboxylic is a contraction of two terms:


719) Boiling point of a compound does not depend on:


720) Which acid is an optically active?


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


722) Which of the following statement is correct?


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


724) Which one of the following contains acetic acid?


725) Salicylic acid gives a compound known as oil of winter green when treated with


726) The compound easily soluble in water is:


727) Carbon atom of carbonyl gp. in aldehyde is of:


728) Which reagent is useful in separating benzoic acid from phenol?


729) Acetone and acetophenone can be identified by:


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


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


732) The main source of organic compounds is:


733) The strongest acid is:


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


735) Formaldehyde can be distinguished from acetaldehyde by:


736) Oxalic acid may be distinguished from tartaric acid by:


737) Aldehydes are produced in atmosphere by:


738) Which is not an organic compound?


739) In organic compound phosphorus is estimated as:


740) Wolff-Kishner reduction, reduces


741) Steam distillation is a better method of purification for…..compounds.


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


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


744) The IUPAC name of crotonaldehyde is:


745) HVZ reaction leads to the formation of:


746) Which of the following acids acts as reducing agent?


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


748) HCHO and HCOOH are distinguished by treating with:


749) Formula of diacetone alcohol is:


750) Mercuric chloride is reduced to mercurous chloride by:


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


752) Pick up the correct statement from the following:


753) Certain unripe fruits like green apples and plums contain:


754) Which of the following is least acidic?


755) For a compound to be purified by steam distillation:


756) Amides are:


757) Silica gel is used for keeping away the moisture because it:


758) Benzaldehyde on refluxing with aqueous alcoholic KCN produce


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


760) Which of the following is obtained by the oxidation of propionaldehyde?


761) Acetaldehyde and acetone differ in their reaction with:


762) Which of the following reactions can be used to change benzaldehyde to cinnamic acid?


763) 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


764) Butan-2-one can be converted to propanoic acid by:


765) Lindlar’s catalyst is:


766) In a Cannizaro’s reaction, the combination not possible is


767) When propanone reacts with chlorine, it forms:


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


769) The structural formula of the compound isomeric with acetone is:


770) 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:


771) In the preparation of an ester the commonly used dehydrating agent is:


772) In glycine the basic group is:


773) Which of the following have high melting points?


774) The reverse of esterification is known as:


775) 0.14 g of an acid required 12.5 mL of 0.1N NaOH for complete neutralization. The equivalent weight of the acid is:


776) Which of the following contains pungent odour?


777) Which of the following cannot reduce Fehling solution?


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


779) Which of the following does not undergo benzoin condensation?


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


781) Benzaldehyde reacts with ammonia to form


782) Ketones are less reactive than aldehydes because:


783) Dialkyl cadmium reacts with a compound to form a ketone. The compound is:


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


785) Which of the following has the most acidic hydrogen?


786) Which of the following will be most readily dehydrated under acidic conditions?


787) Sodium salt of formic acid on strong heating followed by acid hydrolysis yields:


788) Which of the following acids has the smallest dissociation constant?


789) Salol (phenyl salicylate ) is used as an:


790) Aldehydes and ketones will not form crystalline derivatives with:


791) Pyruvic acid is obtained by


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


793) Carbon atom of carbonyl gp. in ketone is of:


794) Formic acid is not a representative member of the carboxylic acids because:


795) The molecular formula of methanoic acid and propanoic acid differs by:


796) The most suitable method of separation of 1 : 1 mixture of ortho and para nitrophenols is:


797) Which of the following is not true about the urea?


798) The term hypnone is used for:


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


800) Alkaline hydrolysis of esters is………than acid hydrolysis.


801) Main product obtained from the reaction of ammonia and formaldehyde is


802) The gas evolved on heating alkali formate with soda-lime is


803) 2, 4-dichlorophenoxy acetic acid is used as


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


805) 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?


806) The Cannizzaro’s reaction is not given by:


807) Which of the following represents the correct order of the activity in the given compounds?


808) Ellution is the process for:


809) Pyroligneous acid contains:


810) The oxidation of benzyl chloride with lead nitrate gives


811) Chlorine does not react with:


812) Bakelite polymer is formed by the polymerization of


813) The difference between aldol condensation and Cannizzaro’s reaction is that:


814) Collin’s reagent causes the conversion:


815) Cyanohydrin of which compound gives lactic acid on hydrolysis?


816) The enolic form of acetone contains:


817) Monocarboxylic acids (saturated) are regarded as………..oxidation products of paraffins.


818) Which of the following forces explain the boiling point of aldehydes and ketones?


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


820) A distinctive and characteristic functional group in fat is:


821) Sodium acetamide smells like:


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


823) The final product formed when acetaldehyde is reduced with sodium and alcohol is:


824) A carboxylic acid is converted into its anhydride using


825) Ammonium formate on heating yields:


826) Aldehydes and ketones form addition products with:


827) Lactic acid on oxidation with Fenton’s reagent gives main product:


828) Urotropine has the composition:


829) An aliphatic hydroxy acid is:


830) 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?


831) In presence of iodine catalyst, chlorine reacts with acetic acid to form:


832) Propanone does not undergo:


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


834) Formaldehyde when reacted with methyl magnesium bromide gives


835) Ethane can be obtained from ethanal in one step by:


836) Partial oxidation of methane gives:


837) Ethyl acetate is obtained when methyl magnesium bromide reacts with


838) Collin’s reagent is used to convert


839) Which can be reduced to corresponding hydrocarbon by Zn/HCl?


840) The product obtained when acetic acid is treated with phosphorus trichloride is:


841) The final products of oxidation of isopropyl alcohol are:


842) Which gives a ketone with a Grignard reagent?


843) Self condensation of acetaldehyde, in the presence of dilute alkalies gives


844) Hybridization of carbon in carbonylic group is:


845) When benzaldehyde reacts with acetophenone in presence of sodium hydroxide, then product is


846) Acetaldehyde cannot exhibit:


847) Cannizaro reaction is performed by


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


849) Aldehydes can be conveniently separated from alcohols by treating with:


850) One having high vapour pressure at temperature below its m. p. :


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


852) Which of these does not contain –COOH group?


853) Schiffs and Piria method is used for the estimation of:


854) Select the strongest acid:


855) The most acidic of the following is


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


857) The most appropriate reagent to distinguish between acetaldehyde and formaldehyde is


858) The reaction of acetaldehyde with Tollen’s reagent gives


859) Aldol condensation is given by:


860) Isoelectric point is the pH at which :


861) Ascorbic acid is a/an:


862) Lacrymator or tear gas is:


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


864) Formic acid:


865) Reactivity of acids in esterification follows the order:


866) 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?


867) The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of:


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


869) Which is obtained by the oxidation of propionaldehyde?


870) Acetone and acetaldehyde can be identified by treatment with:


871) The presence of carbon in an organic compound can be shown by


872) Choose the incorrect statement


873) Benzoin is


874) Highest pH value among the following is that of:


875) Molecular weight of phorone is equal to


876) Raw juice in sugar factories is generally concentrated by:


877) Which of the following converts carbonyl compounds into hydrocarbons?


878) 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?


879) Schiff’s reagent is:


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


881) Fuels from crude oil are separated from one another by:


882) The aldol condensation of acetaldehyde results in the formation of:


883) Which one of the following can produce hydrogen when treated with metallic sodium?


884) Organic compounds are studied separately from inorganic compounds because:


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


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


887) When a ketone is condensed into an aldol, the reagent used is:


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


889) Which of the aldehyde is most reactive?


890) Which of the following is present in tea as well as in bark of a tree?


891) Waxes are long chain compounds belonging to the class:


892) Which of the following is correct for carbonyl compounds?


893) Which of the following has most acidic hydrogen?


894) Amino acid usually exists in the form of Zwitter ions, which consists of:


895) Which of the following do not form addition compounds with ammonia?


896) Etard’s reaction involves the preparation of benzaldehyde from


897) The Hell-Volhard-Zelinsky reaction is used for preparing


898) Aldehydes on reaction with hydroxylamine gives :


899) 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:


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


901) Acetone is used in:


902) The conversion of benzaldehyde into benzyl alcohol takes place by


903) What is the oxidation number of carbonyl carbon in acetophenone?


904) Acetic acid on heating with urea gives:


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


906) At the isoelectric point for amino acid the species present are:


907) Stinges of bees, red ant and wasps contain:


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


909) Which of the following on oxidation gives an acid containing two carbon atoms?


910) Which of the following has highest b.p.?


911) Alkaline hydrolysis of an ester is called:


912) The reagent used in Gattermann Koch aldehyde synthesis is


913) Which is false in case of carboxylic acids?


914) Acetyl chloride cannot be obtained by treating acetic acid with:


915) Carbonyl compounds react with phenyl hydrazine to form:


916) Formic acid is obtained when:


917) Benedict’s solution is not reduced by


918) Vinegar is


919) Which will not give acetamide (no heating) on reaction with ammonia?


920) Jone’s reagent is:


921) Trans esterification is the process of


922) The formation of aldehyde from alkyl cyanide is related with the name


923) Treatment of propionaldehyde with dil. NaOH gives:


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


925) In steam distillation, the vapour pressure of the volatile organic compound is:


926) The correct order of acid strength is:


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


928) Oxalic acid, malonic acid and succinic acid can be distinguished by:


929) In Kjeldahl’s method nitrogen present is quantitatively converted to:


930) Propionic acid and KOH reacts to produce which one of the following?


931) Anhydrous formic acid cannot be obtained from aqueous solution by fractional distillation because:


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


933) Which compounds will not reduce Fehling’s solution?


934) Which of the following compounds is oxidized to prepare methyl ethyl ketone?


935) 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


936) The substance used as an adsorbent in the column chromatography is:


937) Saturated fatty acids are represented by which of the formula?


938) Clemmensen reduction of a ketone is carried out in the presence of which of the
following?


939) Which of the following diacid readily gives anhydride on heating?


940) 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:


941) Which of the following acids has the smallest dissociation constant?


942) In the conversion of Grignard reagent into an aldehyde, the other component used in


943) Which of the following statements regarding amides is not correct?


944) Maleic and fumaric acids:


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


946) The property which distinguishes formic acid from acetic acid is


947) Absolute alcohol is prepared from rectified spirit by:


948) Which of the following gives oxalic acid?


949) Urea on slow heating gives


950) The conversion of acetophenone to acetanilide is best accomplished by using


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


952) Which acid is used in baking powder?


953) Which of the following statements are correct for benzoic acid?


954) General formula of carbonyl compound is:


955) Formic acid and acetic acid are distinguished by


956) Which of the following types of carbonyl groups will produce oxime on reaction with?


957) Aldehydes and ketones can be reduced to hydrocarbon by using


958) Industrial preparation of formic acid involves:


959) Vinegar is a solution of acetic acid which is


960) Which of the following is the strongest acid?


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


962) Tollen’s reagent is


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


964) Aldol condensation of aldehydes and ketones takes place through the formation of:


965) Acetic anhydride reacts with ammonia to give:


966) Petroleum refining involves:


967) Which of the following will not undergo Hell Volhard Zelinsky reaction?


968) Which of the following will not undergo aldol condensation?


969) 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:


970) Which method is not used in the preparation of ketone?


971) The reagent which does not give acid chloride on treating with a carboxylic acid is


972) Separation of petroleum into its components is mostly done by:


973) The product formed in the aldol condensation of acetaldehyde is


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


975) The reagent with which both acetaldehyde and acetone react is


976) The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits


977) Which of the following orders is wrong with respect to property indicated?


978) Organic compounds are studied separately from others, because:


979) Aldehydes are first oxidation product of: