Practice Test

Q1) Which of the following compounds is not coloured? Show Answer

Q2) According to the postulates of Werner's theory for coordination compounds Show Answer

Q3) The coordination number of Fe (II) in oxyhaemoglobin is Show Answer

Q4) Which of the following will give maximum number of isomers? Show Answer

Q5) Atomic number of Cr and Fe are respectively 24 and 26. Which of the following is paramagnetic with the spin of the electron? Show Answer

Q6) Which of the following compounds is square planner and does not have any unpaired electron? Show Answer

Q7) Pentaamminenitrocobalt (III) cation possesses the property of Show Answer

Q8) In any ferric salt, on adding potassium ferrocyanide a Prussian blue colour is obtained, which is mainly due to the formation of Show Answer

Q9) Which of the following is organometallic compound? Show Answer

Q10) A coordination complex compound of cobalt has molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of silver nitrate solutions, two moles of AgCl get precipitated. The ionic formula of this complex would be Show Answer

Q11) Which of the following is expected to be a paramagnetic complex? Show Answer

Q12) Which of the following compounds exhibits linkage isomerism? Show Answer

Q13) Which one of the following will not show geometrical isomerism? Show Answer

Q14) Which of the following hydrate is diamagnetic? Show Answer

Q15) Which one of the following octahedral complexes will not show geometrical iosmerism? (A and B are monodenatate ligands) Show Answer

Q16) In which there is outer orbital hybridisation? Show Answer

Q17) Which complex has square planar structure? Show Answer

Q18) In which of the following coordinate compounds the central metal atom obeys the EAN rule. Show Answer

Q19) Correct formula of the complex formed in the brown ring test for nitrates is Show Answer

Q20) The hypothetical complex chlorodiaquatriamminecobalt (III) chloride can be represented as Show Answer

Q21) According to Lewis, the ligands are Show Answer

Q22) Which of the following is not considered as an organometallic compound? Show Answer

Q23) The number of chloirde ion/s produced by complex tetraamminechloroplatinum (IV) chloride in an aqueous solution is Show Answer

Q24) In the compound lithium tetrahydridoaluminate, the ligand is Show Answer

Q25) Which is paramagnetic? Show Answer

Q26) Some salts although containing two different metallic elements give test for only one of them in solution. Such salts are Show Answer

Q27) The chemical formula for iron (III) hexacyanoferrate (II) is Show Answer

Q28) Which statement is incorrect? Show Answer

Q29) The most stable complex among the following is Show Answer

Q30) Which of the following does not have optical isomer? Show Answer

Q31) The formula of sodium nitroprusside is Show Answer

Q32) Which of the following is paramagnetic ? Show Answer

Q33) Mg is an important component of which bio-molecule occurring extensively in living world? Show Answer

Q34) Which of the following has square planar structure? Show Answer

Q35) Which of the following complexes will have four isomers? Show Answer

Q36) The blue colour obtained in the Lassaigne test is due to formation of the compound Show Answer

Q37) The formula of dichlorobis (urea) copper (II) is Show Answer

Q38) The group satisfying the secondary valencies of a cation in a complex are called Show Answer

Q39) Diethylene triamine is Show Answer

Q40) In which of the following compounds, the transition metal is in oxidation state of zero? Show Answer

Q41) Transition metals can form complexes in Show Answer

Q42) Oxidation state of nitrogen is not correctly given for the compound Show Answer

Q43) Which ion produces a small crystal field splitting ( a weak field ligand)? Show Answer

Q44) Colour of transition metal complexes can be explained by Show Answer

Q45) The tendency to show complex formation is maximum in ............ elements. Show Answer

Q46) A reagent used for identifying nickel ion is Show Answer

Q47) Geometrical isomerism is found in coordination compounds having coordination number Show Answer

Q48) Hexafluorocobaltate (III) ion is found to be high spin complex, the probable hybrid state of cobalt in it is Show Answer

Q49) Transition elements form complexes readily because of Show Answer

Q50) The two compound sulphatopentamminecobalt (III) bromide and sulphatopentaamminecobalt (III) chloride represent. Show Answer

Q51) Bidentate ligand is Show Answer

Q52) Iron has lowest oxidation state in Show Answer

Q53) Which one is not a ligand? Show Answer

Q54) A complex of platinum, ammonia and chlorine produces four ions per molecule in the solution. The structure consistent with the observation is Show Answer

Q55) Which of the following pairs of structures represents facial and meridional isomers (geometrical isomers) respectively? Show Answer

Q56) The formula of the complex potassium trichloroethylene platinate (II) is Show Answer

Q57) In Ziegler-Natta polymerization of ethylene, the active species is Show Answer

Q58) Which of the following will exhibit optical isomerism? Show Answer

Q59) The shape of cuprammonium ion is Show Answer

Q60) The catalyst used for the polymerization of olefins is Show Answer

Q61) Which of the following complex species does not involve inner orbital hybridisation? Show Answer

Q62) Which of the following ligands is a bidentate? Show Answer

Q63) The green pigment present in plants, chlorophyll contains the metal Show Answer

Q64) Carnallite is a Show Answer

Q65) Which of the following is odd one out? Show Answer

Q66) Which one of the following is an example of octahedral complex? Show Answer

Q67) Which of the following complex will show geometrical as well as optical isomerism? (en = ethylenediamine) Show Answer

Q68) Which of the following is paramagnetic ? Show Answer

Q69) A group of atoms can function as ligand only when Show Answer

Q70) The coordination number of copper in cuprammonium sulphate is Show Answer

Q71) A solution of potassium ferrocyanide would contain ...... Ions. Show Answer

Q72) Ligands in a complex salt are Show Answer

Q73) An example for a double salt is Show Answer

Q74) Both geometrical and optical isomerisms are shown by Show Answer

Q75) Pick out wrong combination. Show Answer

Q76) Which of the following shell form an outer octahedral complex? Show Answer

Q77) In octahedral CFT, the number of orbitals pushed down in energy are Show Answer

Q78) Which of the following cannot show linkage isomerism? Show Answer

Q79) Change in composition of coordination sphere yields which type of isomers? Show Answer

Q80) An octahedral complex is formed when hybrid orbitals of the following type are involved? Show Answer

Q81) Which is high spin complex? Show Answer

Q82) Which has square planar geometry? Show Answer

Q83) The type of isomerism present in nitropentaamminechromium (III) chloride is Show Answer

Q84) A similarity between optical and geometrical isomerism is that Show Answer

Q85) A square planar complex is formed by hybridization of which atomic orbitals? Show Answer

Q86) The coordination number of a central metal atom in complex is determined by Show Answer

Q87) Which one of the following complexes is an outer orbital complex? Show Answer

Q88) Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect? Show Answer

Q89) Which of the following compounds shows optical isomerism? Show Answer

Q90) Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour? Show Answer

Q91) Which of the following has a square planar geometry? Show Answer

Q92) The compound which does not show paramagnetism is Show Answer

Q93) Amongst the following ions which one has the highest paramagnetism? Show Answer

Q94) Which of the following is an organometallic compound? Show Answer

Q95) The complex ion which has no d electrons in the central metal atom is (At. No. Cr = 24, Mn = 25, Fe = 26, Co = 27) Show Answer

Q96) The species having tetrahedral shape is Show Answer

Q97) Which compound is formed when excess of KCN is added to aqueous solution of copper sulphate? Show Answer

Q98) Among the following, the compound that is both paramagnetic and coloured is Show Answer

Q99) Among the following metal carbonyls, the C - O bond order is lowest in Show Answer

Q100) The compound(s) that exhibit(s) geometrical isomerism is (are) Show Answer

Q101) Which of the following has an optical isomer? Show Answer

Q102) Which of the following pairs represents linkage isomers? Show Answer

Q103) Exchange of coordination group by a water molecule in complex molecule results in: Show Answer

Q104) The type of isomerism found in urea molecule is Show Answer

Q105) Anisol is a product obtained from phenol by the reaction known as: Show Answer

Q106) Which of the following is diamagnetic in nature? Show Answer

Q107) Which is the strongest field ligand? Show Answer

Q108) The compound which does not show paramagnetism is Show Answer

Q109) Which of the following is expected to undergo nitration more easily and readily to furnish the corresponding
nitro derivatives employing the usual nitrating mixture? Show Answer

Q110) Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so
obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains: Show Answer

Q111) A positive carbylamine test is given by: Show Answer

Q112) Which of the following is not true for ligand metal complex? Show Answer

Q113) A ligand can also be regarded as Show Answer

Q114) Which one of the following has lowest value of paramagnetic behaviour? Show Answer

Q115) An octahedral complex is formed when central metal atom undergoes hybridization amongst the….orbitals. Show Answer

Q116) Which of the following has the highest molar conductivity in solution? Show Answer

Q117) Which of the following is not meta directing group? Show Answer

Q118) Which of the following is an organometallic compound? Show Answer

Q119) Which among the following is very strong o-, p-directing group? Show Answer

Q120) The type of hybridisation in tetrahedral complexes of metal atom is Show Answer

Q121) Consider the following statements
I. Chain and position isomerism are not possible together between two isomers
II. Tautomerism is a chemical phenomenon which is catalysed by acid as well as base
III. Tautomers are always metamers
IV. Tautomers are always functional isomers
Select the correct answer by using the codes given below Show Answer

Q122) The compound having tetrahedral geometry is Show Answer

Q123) Which of the following is most acidic? Show Answer

Q124) Benzoylacetonato beryllium exhibit isomerism of the type Show Answer

Q125) Which one of the following has a square planar geometry?
(At. No. Fe=26, Co=27, Ni=28, Pt=78) Show Answer

Q126) A solution of potassium ferrocyanide would contains-ions Show Answer

Q127) Which of the following is not considerd as an organometallic compound? Show Answer

Q128) Which statement about coordination number of a cation is true? Show Answer

Q129) Among the following, the strongest base is: Show Answer

Q130) General formula for arenes is: Show Answer

Q131) Which of the following doesn’t have a metal-carbon bond? Show Answer

Q132) Thiophene is separated from benzene by: Show Answer

Q133) Colour of transition metal complexes can be explained by: Show Answer

Q134) Which is most reactive towards electrophilic reagents: Show Answer

Q135) Pick a poor electrolytic conductor complex in solution: Show Answer

Q136) Benzene reacts with sulphuric acid only when the acid is: Show Answer

Q137) The alkane which has only primary hydrogen atom is Show Answer

Q138) Which of the following nitroalkane will not show tautomerism? Show Answer

Q139) Which is low spin complex? Show Answer

Q140) The probable formula for Prussian blue is: Show Answer

Q141) Which represents Reimer-Tiemann reaction? Show Answer

Q142) The complex ion which has no ‘d’-electron in the central metal atom is : Show Answer

Q143) The shape of cobalt hexaammine cation, which has its central cobalt atom surrounded by six ammonia molecules is: Show Answer

Q144) Which ligand is capable of forming low spin as well as high spin complexes? Show Answer

Q145) An aromatic ether is not cleaved by HI even at 525 K. The compound is: Show Answer

Q146) Phenol does not react with: Show Answer

Q147) Ferrocene is an example of Show Answer

Q148) Which compound is zero valent metal complex? Show Answer

Q149) Which of the following compounds is 2, 2, 3-trimethyl hexane? Show Answer

Q150) The formula of phenoxy benzene is: Show Answer

Q151) Ziegler-Natta catalyst is an organometallic compound containing Show Answer

Q152) Ziegler-Natta catalyst is Show Answer

Q153) The tendency to show complex formation is maximum in ….elements. Show Answer

Q154) EDTA has coordination number Show Answer

Q155) Which of the following is used in Friedel-Craft’s acylation reaction? Show Answer

Q156) The centric formula for benzene was proposed by: Show Answer

Q157) Which is the correct statement? Show Answer

Q158) Phenol on sulphonation gives: Show Answer

Q159) The number of double bonds in BHC (gammexane) is: Show Answer

Q160) Which one of the following octahedral complexes will not show geometrical isomerism? (A and B are
monodentate ligands) Show Answer

Q161) Which of the following complex ion is not expected to absorb visible light? Show Answer

Q162) The correct sequence of activating power of a group in benzene is: Show Answer

Q163) The pair of compounds having metals in their highest oxidation state is Show Answer

Q164) The reaction of chloroform with alc. KOH and p-toluidine forms: Show Answer

Q165) Which order is correct in spectrochemical series of ligands? Show Answer

Q166) Correct structures of [E][S]-5-bromo-2,7-dimetyl, non-4-ene is Show Answer

Q167) Which of the following shows geometrical isomerism? Show Answer

Q168) Which of the following does not show optical isomerism? Show Answer

Q169) Which of the following is an explosive? Show Answer

Q170) Rate of substitution in phenol is: Show Answer

Q171) Chlorophyll is a coordination compound having central atom of: Show Answer

Q172) Which of the following statements is incorrect? Show Answer

Q173) Which one is the wrong statement? Show Answer

Q174) According to postulates of Werner’s theory for coordination compounds, which of the following is true? Show Answer

Q175) Atomic numbers of Cr and Fe are respectively 24 and 26. Which of the following is paramagnetic with the
spin of the electron? Show Answer

Q176) Which of the following will give a pair of enantiomorphs? Show Answer

Q177) Which among the following will not show chain isomerism? Show Answer

Q178) Phenol (1 mole) reacts with bromine to give s-tribromophenol. How much bromine is needed? Show Answer

Q179) Dimethyl glyoxime forms a coloured complex with Show Answer

Q180) Which has regular tetrahedral geometry? Show Answer

Q181) In haemoglobin the iron shows oxidation state: Show Answer

Q182) Which can show aromatic character? Show Answer

Q183) Of the following complexes, the one with the largest value of the crystal field splitting is: Show Answer

Q184) Lithium tetrahydridoaluminate is correctly represented as: Show Answer

Q185) Which of the following compounds is generally used for hydrogenation of alkenes? Show Answer

Q186) Which does not obey EAN rule? Show Answer

Q187) Which of the following is not an organometallic compound? Show Answer

Q188) The value of ‘spin only’ magnetic moment for one of the following configuration is 2.84 BM the correct one Show Answer

Q189) Which compound burns with a sooty flame? Show Answer

Q190) Which reaction can produce R—CO—Ar species? Show Answer

Q191) Acidic character of phenol is due to: Show Answer

Q192) In triethylenediamine cobalt(III) chloride the coordination number of cobalt is: Show Answer

Q193) Mark the unidentical compound Show Answer

Q194) A complex compound in which the oxidation number of a metal is zero, is Show Answer

Q195) In the halogenation of aromatic nucleus, the halogen carrier, used to generate the species is: Show Answer

Q196) Benzene is obtained by Show Answer

Q197) IUPAC name of t-butyl chloride is Show Answer

Q198) Phenol is more acidic than cyclohexanol because: Show Answer

Q199) Phenol is less soluble in water. It is due to: Show Answer

Q200) When phenol is treated with excess bromine water, it gives: Show Answer

Q201) Which is high spin complex? Show Answer

Q202) The correct IUPAC name of tartaric acid is Show Answer

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

Q204) When aniline is heated with benzaldehyde, the product is: Show Answer

Q205) Slow heating of salicylic acid gives: Show Answer

Q206) According to Hückel, monocyclic compounds will show aromaticity when: Show Answer

Q207) When phenol is distilled with zinc dust, it gives: Show Answer

Q208) Which of the following has maximum resonance energy? Show Answer

Q209) Which of the following statements is correct? Show Answer

Q210) Which statement is not correct? Show Answer

Q211) The complex showing a spin-only magnetic moment of 2.82 BM is Show Answer

Q212) The product of acid catalysed hydration of 2-phenyl propene is: Show Answer

Q213) Carbolic acid is the name used for: Show Answer

Q214) Formaldehyde-phenol resin is: Show Answer

Q215) Cyclopentadienyl anion is aromatic due to the presence of: Show Answer

Q216) Which xylene is most easily sulphonated? Show Answer

Q217) Racemic modification can be resolved by Show Answer

Q218) Which of the following structure contain 1 primary and 7 secondary hydrogen atoms? Show Answer

Q219) The empirical formula of naphthalene is: Show Answer

Q220) The chemical formula of diammine silver (I) chloride is Show Answer

Q221) Which group is meta directing? Show Answer

Q222) Which statement is true for cyclohexane? Show Answer

Q223) Ligands in a complex salt are: Show Answer

Q224) When benzene is treated with CO and HCl in presence of anhydrous aluminium chloride, benzaldehyde is
formed. This reaction is known as: Show Answer

Q225) Which complex is diamagnetic? Show Answer

Q226) Meso-tartaric acid is optically inactive due to the presence of Show Answer

Q227) Complex forming tendency increases with: Show Answer

Q228) Ziegler-Natta catalyst is Show Answer

Q229) Among the following compounds the one that is most reactive towards electrophilic nitration is: Show Answer

Q230) Phenol on oxidation gives chloranil. The oxidant used is: Show Answer

Q231) All the common m -directing groups……the benzene ring towards electrophilic substitution reactions Show Answer

Q232) Among the following, the coloured compound is : Show Answer

Q233) Which one does not belong to ligand? Show Answer

Q234) Which one of the following has square planar structure? Show Answer

Q235) Phthalein test is characteristics of ….and is given by it. Show Answer

Q236) 4-methyl benzene sulphonic acid reacts with sodium acetate to give: Show Answer

Q237) Which of the following compounds would exhibit coordination isomerism? Show Answer

Q238) The carboxyl functional group (−COOH) is present in: Show Answer

Q239) Which of the following is an example of electrophilic substitution reaction? Show Answer

Q240) Which of the following is an organometallic compound? Show Answer

Q241) On passing benzene vapour through a tube at 700-800 C or through molten lead we get: Show Answer

Q242) Picric acid is a yellow coloured compound. Its chemical name is: Show Answer

Q243) The ideal starting material for the synthesis of m-chloronitro benzene is: Show Answer

Q244) When ammonia is added to green aqueous solution of nickel(II) sulphate, the colour of the solution changes
to blue violet. This is caused by: Show Answer

Q245) Among the following-phenol, benzoic acid, nitrobenzene and toluene, the compound that undergoes
nitration readily is: Show Answer

Q246) Which one is organometalllic compound? Show Answer

Q247) What are the products formed when an equimolar mixture of benzaldehyde and formaldehyde is heated
with concentrated NaOH? Show Answer

Q248) Which of the following is considered to be an anticancer species? Show Answer

Q249) For benzaldehyde which of the following is incorrect? Show Answer

Q250) The main source of aromatic compounds is: Show Answer

Q251) Phenol on hydrogenation in presence of a nickel catalyst at 160 C gives: Show Answer

Q252) Fac-mer isomerism is associated with which one of the following complexes? (M=central metal) Show Answer

Q253) Which of the following is the correct order of stability of the following four distinct conformation of n
butane? Show Answer

Q254) o-nitrophenol can form hydrogen bonds within the molecule. It thus, has: Show Answer

Q255) The element which does not form mononuclear carbonyl is: Show Answer

Q256) Which of the following is hexadentate ligand? Show Answer

Q257) An octahedral complex is formed when hybrid orbitals of the following type are involved Show Answer

Q258) Which product is not obtained by heating wood or coal in the absence of air? Show Answer

Q259) Dry distillation of calcium benzoate with calcium formate gives: Show Answer

Q260) Each metal possesses: Show Answer

Q261) Aspirin is: Show Answer

Q262) Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. It structure
would be: Show Answer

Q263) Pyridine possesses: Show Answer

Q264) A reagent used for identifying nickel ion is: Show Answer

Q265) Aniline was diazotised and subsequently reduced with stannous chloride and hydrochloric acid to yield: Show Answer

Q266) Pick out the complex compound in which the central metal atom obeys EAN rule strictly Show Answer

Q267) Amongst the following, the compound that can be most readily sulphonated is: Show Answer

Q268) p-chloroaniline and anilium hydrochloride can be distinguished by: Show Answer

Q269) Pyrogallol is….. trihydroxy benzene Show Answer

Q270) p-cresol reacts with chloroform in alkaline medium to give compound (A) which adds hydrogen cyanide to
form compound (B). The latter on acidic hydrolysis gives chiral carboxylic acid. The acid is: Show Answer

Q271) The number of isomeric xylenes is: Show Answer

Q272) Among the following metal carbonyls, C— O bond order is lowest in Show Answer

Q273) Which of the following shell, form an outer octahedral complex? Show Answer

Q274) Friedel-Craft’s reaction of bromobenzene with methyl iodide gives: Show Answer

Q275) Which exist as a pair of mirror image isomers? Show Answer

Q276) Benzene double bonds are not so reactive as those of hexatriene because: Show Answer

Q277) The most stable ion is Show Answer

Q278) In the coal-tar distillation of middle oil, the aromatic compounds present are: Show Answer

Q279) Which of the following system is most stable for a chelate? Show Answer

Q280) The shortest C—O bond order exists in: Show Answer

Q281) Between p-nitrophenol and salicyladehyde, solubility in base is: Show Answer

Q282) (+) and (-) forms of optically active compounds are different in Show Answer

Q283) In which of the following compounds does the central atom obey EAN rule? Show Answer

Q284) Which ligand produces a high crystal field splitting (a strong ligand field)? Show Answer

Q285) Which of the following coordination compounds would exhibit optical isomerism? Show Answer

Q286) Which has maximum paramagnetic character? Show Answer

Q287) Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives: Show Answer

Q288) Sulphonation of benzoic acid produces mainly: Show Answer

Q289) Salicylic acid, aspirin, nylon, plastics and picric acid have a common raw material, namely Show Answer

Q290) Ulmann’s reaction is used for the preparation of: Show Answer

Q291) Which of the following statements is/are incorrect for D − (+) −glyceradehyde? Show Answer

Q292) Which ion is paramagnetic? Show Answer

Q293) Dow process is used for the conversion of chlorobenzene to: Show Answer

Q294) Phenolphthalein is produced on heating phthalic anhydride and conc. sulphuric acid with: Show Answer

Q295) Benzene is converted to toluene by: Show Answer

Q296) The number of ions formed when hexamine copper (II) sulphate is dissolved in water is? Show Answer

Q297) Nickel metal is in highest oxidation state in: Show Answer

Q298) Which of the following complexes show six coordination number? Show Answer

Q299) Which of the following statements is wrong? Show Answer

Q300) Which chloro derivative of benzene among the following would undergo hydrolysis most readily with
aqueous NaOH to furnish the corresponding hydroxyl derivative? Show Answer

Q301) Some salts although containing two different metallic elements give test for only one of them in solution.
Such salts are: Show Answer

Q302) The hybridization of central metal ion and shape of Wilkinson’s catalyst is Show Answer

Q303) An enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon. The
ester formed will be Show Answer

Q304) Which of the following ring is most strained? Show Answer

Q305) Formylchloride has not been prepared so far. Which can function as formylchloride in formylation? Show Answer

Q306) Which one of the following does not give a white precipitate with silver nitrate solution? Show Answer

Q307) Of the following complex ions, which is diamagnetic in nature? Show Answer

Q308) Which of the following are produced from coal-tar? Show Answer

Q309) Chlorine is least reactive in: Show Answer

Q310) Which follows EAN rule? Show Answer

Q311) Which one is bidentate ligand? Show Answer

Q312) The reagent used for conversion of benzene diazonium chloride to benzene is: Show Answer

Q313) Which will not give the usual test for iron? Show Answer

Q314) The first organic compound prepared in the laboratory was Show Answer

Q315) Which of the following statements regarding phenols is not correct? Show Answer

Q316) Which would decolourise cold, aq. potassium permanganate solution? Show Answer

Q317) Which of the following deactivates benzene substitution? Show Answer

Q318) Aniline, chloroform and alc. KOH on heating give: Show Answer

Q319) The incorrect statement for IUPAC system of nomenclature is Show Answer

Q320) When sodium benzene sulphonate is fused with sodium hydroxide (solid), followed by hydrolysis the
product formed is: Show Answer

Q321) The correct order of stability of conformations of cyclohexane is Show Answer

Q322) The increasing order of boiling points of compounds given below is:
(I) 1,2-dihydroxy benzene
(II) 1,3-dihydroxy benzene
(III) 1,4-dihydroxy benzene
(IV) Hydroxyl benzene Show Answer

Q323) The pair of the compounds in which both the metals are in the higher possible oxidation state is Show Answer

Q324) Which of the following are functional isomers? Show Answer

Q325) Phenol is: Show Answer

Q326) Nitrobenzene is generally used for: Show Answer

Q327) Salicylic acid as compared to benzoic acid: Show Answer

Q328) Which ligand is expected to be bidentate? Show Answer

Q329) Which one of the following is most reactive towards aqueous NaOH? Show Answer

Q330) Which is not an aromatic compound? Show Answer

Q331) Which one of the following is wrongly matched? Show Answer

Q332) Stereoisomers have different Show Answer

Q333) Which of the following will show optical isomerism? Show Answer

Q334) Which one group is trivalent in nature? Show Answer

Q335) Benzene contains double bonds but does not give addition reactions because: Show Answer

Q336) The type of isomerism present in nitropentaammine-chromium (III) chloride is : Show Answer

Q337) Amongst the following carboxylic acids the strongest acid is: Show Answer

Q338) The energy difference between chair and the boat conformation of cyclohexane is Show Answer

Q339) Compounds having the same molecular formula but different properties are called Show Answer

Q340) The benzene molecule contains: Show Answer

Q341) The solubility of AgCN increases by the addition of KCN because of: Show Answer

Q342) Alicyclic compounds are Show Answer

Q343) Which of the following compounds reacts slower than benzene in electrophilic bromination? Show Answer

Q344) Replacement of Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4-
dinitrochlorobenzene is readily replaced because: Show Answer

Q345) Salicylic acid on heating with soda lime forms: Show Answer

Q346) Which of the following is an organometallic compound? Show Answer

Q347) Which of the following is the strongest base? Show Answer

Q348) Which of the following will be aromatic? Show Answer

Q349) The correct symbol relating the two Kekule structure of benzene is: Show Answer

Q350) Benzaldehyde can be obtained by the hydrolysis of: Show Answer

Q351) Which of the following has an optical isomer? Show Answer

Q352) Chromium carbonyl is: Show Answer

Q353) Which of the following reagents may be used to distinguish between phenol and benzoic acid? Show Answer

Q354) Which one of the following shows maximum value of paramagnetic behaviour? Show Answer

Q355) Which of the following species will be diamagnetic? Show Answer

Q356) Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour? Show Answer

Q357) Moth balls contain: Show Answer

Q358) The number of unidentate ligands in the complex ion is called Show Answer

Q359) According to Hückel rule, the number of π-electrons in anthracene is: Show Answer

Q360) In ethane and cyclohexane which one of the following pairs of conformations are more stable? Show Answer

Q361) Among the following which is not π-bonded organometallic compound? Show Answer

Q362) o, p-directing groups are generally: Show Answer

Q363) Aryl halides are less reactive towards nucleophilic substitution reaction as compared to alkyl due halides to: Show Answer

Q364) Which would be least reactive towards bromine? Show Answer

Q365) Which has a smell of oil of winter green? Show Answer

Q366) Which statement is not correct regarding aniline? Show Answer

Q367) Among the following, identify the species with an atom of +6 oxidation state: Show Answer

Q368) Which of the following alkanes contain primary, secondary, tertiary and quaternary carbon atom together? Show Answer

Q369) The hardness of water is estimated by: Show Answer

Q370) The number of tertiary C-atoms in 2,2,4,4-tetra methyl pentane is Show Answer

Q371) The Clemmensen reduction of benzaldehyde gives: Show Answer

Q372) Which one of the following has an optical isomer?
(en=ethylenediamine) Show Answer

Q373) Which fraction of coal-tar is rich in arene? Show Answer

Q374) Which complex cannot ionize in solution? Show Answer

Q375) Ozonolysis of benzene gives: Show Answer

Q376) In benzene, C—C bond length is 1.39 Å; the C—H bond length is: Show Answer

Q377) Which of the following may be used as food preservative? Show Answer

Q378) Which compound is formed when sodium phenoxide is heated with ethyl iodide? Show Answer

Q379) In metal carbonyl (organometallic)complexes, the M— C bond is Show Answer

Q380) The correct order of magnetic moments (spin only values in BM) among the following is
(Atomic no. Mn=25, Fe=26, Co=27) Show Answer

Q381) Aniline and methyl amine can be differentiated by: Show Answer

Q382) The functional group present in cresols is: Show Answer

Q383) Which one of the following compounds is most acidic? Show Answer

Q384) The most unstable configuration of cyclohexane is Show Answer

Q385) In which compound synergic effect is present? Show Answer

Q386) Aqua regia reacts with Pt to yield: Show Answer

Q387) Nitration of toluene takes place at: Show Answer

Q388) Estimation of calcium and magnesium is done by Show Answer

Q389) How many enantiomer pairs are obtained by monochlorination of 2, 3-dimethyl butane? Show Answer

Q390) Common reactions of benzene and its derivatives are: Show Answer

Q391) The attacking species in aromatic sulphonation is: Show Answer

Q392) Which one of the following compound does not react with bromine? Show Answer

Q393) A complex of platinum, ammonia and chlorine produces four ions per molecule in the solution. The structure
consistent with the observation is: Show Answer

Q394) According to effective atomic number rule the central metal acquires: Show Answer

Q395) The correct structure of ethylenediaminetetraacetic acid (EDTA) is Show Answer

Q396) The coordination number of a central metal atom in a complex is determined by Show Answer

Q397) Which ion shows usually the coordination number 6? Show Answer

Q398) Which of the following represents hexadentate ligand? Show Answer

Q399) The value of the ‘spin only’ magnetic moment for one of the following configurations is 2.84 BM. The correct
one is Show Answer

Q400) Choose the IUPAC name of Show Answer

Q401) Which of the following is a heterocyclic compound? Show Answer

Q402) The correct order of reactivity towards electrophilic substitution is: Show Answer

Q403) Increasing order of expected enol content Show Answer

Q404) Out of the following the metal which forms polynuclear carbonyl is: Show Answer

Q405) Picric acid and benzoic acid can be distinguished by: Show Answer

Q406) The compound having the lowest oxidation state of iron is Show Answer

Q407) m-dihydroxybenzene is also called: Show Answer

Q408) The ion which exhibits green colour Show Answer

Q409) Geometrical isomerism is found in coordination compounds having coordination number: Show Answer

Q410) Which one of the following complexes is not expected to exhibit isomerism? Show Answer

Q411) Pure aniline is a: Show Answer

Q412) Aromatic compounds undergo most easily: Show Answer

Q413) Complexes with halide ligands are generally: Show Answer

Q414) Which one of the following is expected to exhibit optical isomerism [en =ethylenediamine]? Show Answer

Q415) Among the following statements on the nitration of aromatic compounds, the false one is: Show Answer

Q416) Which one is not correct for homologous series? Show Answer

Q417) Ferric ion forms a prussian blue coloured solution due to the formation of: Show Answer

Q418) Which of the following can exhibit geometrical isomerism? Show Answer

Q419) A compound contains 2 dissimilar asymmetric C-atoms. The number of optical isomers are Show Answer

Q420) Which compound exhibits optical isomerism? Show Answer

Q421) Ruthenium carbonyl is: Show Answer

Q422) Oxidation state of nitrogen is incorrectly given for
Compound Oxidation state Show Answer

Q423) Which of the following can participate in linkage isomerism? Show Answer

Q424) Ortho-nitrophenol is less soluble in water than p-and m-nitrophenols because: Show Answer

Q425) Among the following most basic compound is: Show Answer

Q426) The EAN of platinum in potassium hexachloroplatinate (IV) is: Show Answer

Q427) The number of ions formed when copper ammonium sulphate is dissolved in water is: Show Answer

Q428) Which of the following compounds is not optically active? Show Answer

Q429) Phenol is less acidic than: Show Answer

Q430) Incorrect statement is Show Answer

Q431) Which of the following complexes exhibits the highest paramagnetic behaviour? Show Answer

Q432) The coordination number in a/an ……… complex may increase to 8. Show Answer

Q433) Compound used for covering wounds caused by bite of mad dog is: Show Answer

Q434) Cinnamic acid on decarboxylation gives: Show Answer

Q435) In which of the following pairs both the complex show optical isomerism? Show Answer

Q436) The name of the ring structure complex compound formed between metal ion and polydentate ligand is Show Answer

Q437) Which statement is wrong with regard to acetaldehyde and benzaldehyde? Show Answer

Q438) Which reaction sequence would be best to prepare 3-chloroaniline from benzene? Show Answer

Q439) Which will show tautomerism? Show Answer

Q440) Which one of the following is most reactive towards electrophilic reagent? Show Answer

Q441) Which one of the following is not an explosive? Show Answer

Q442) The species having tetrahedral shape is Show Answer

Q443) An imperfect complex of a complex compound is 100% ionized; the compound is called: Show Answer

Q444) For which transition metal ions are low spin complexes impossible? Show Answer

Q445) Among the following compounds, the most acidic is: Show Answer

Q446) An aromatic primary amine with cold nitrous acid leads to the formation of: Show Answer

Q447) Chlorobenzene gives DDT when it reacts with: Show Answer

Q448) Which is considered to be an anticancer species? Show Answer

Q449) The compound required for the formation of thermosetting polymer with methanal is: Show Answer

Q450) Which one of the following has highest number of isomers? Show Answer

Q451) Which group is o- and p-directing? Show Answer

Q452) When benzyl chloride is boiled with aqueous solution of lead nitrate in current of carbon dioxide, the main
product is: Show Answer

Q453) Ligands in complex compounds Show Answer

Q454) Aniline is separated by: Show Answer

Q455) Aqueous solution of nickel sulphate on treating with pyridine and then adding a solution of sodium nitrite
gives dark blue crystals of: Show Answer

Q456) Benzyl alcohol is obtained from benzaldehyde by: Show Answer

Q457) The structure of the compound that gives a tribromo derivative on treatment with bromine water is: Show Answer

Q458) Which one of the following complex ions has geometrical isomers? Show Answer

Q459) The strongest acid among the following aromatic compounds is: Show Answer

Q460) The isomers observed in alkanes is Show Answer

Q461) The two compounds pentaamminesulphatocobalt (III) bromide and pentaamminesulphatocobalt(III)
chloride represent: Show Answer

Q462) In the Grignard reaction, which metal forms an organometallic bond? Show Answer

Q463) Aromatic hydrocarbons are the derivatives of: Show Answer

Q464) Benzene easily shows: Show Answer

Q465) When benzoic acid is heated with soda lime, we get: Show Answer

Q466) If a compound absorbs violet colour from the sunlight, then the observed colour is: Show Answer

Q467) Sulphonic acid is used in the manufacture of: Show Answer

Q468) The strongest o-, p-directing group among the following is: Show Answer

Q469) From the stability constant (hypothetical values) given below, predict which is the strongest ligand? Show Answer

Q470) Which has highest m.p.? Show Answer

Q471) Hexafluorocobaltate(III) ion is found to be high spin complex, the probable hybrid state of cobalt in it is: Show Answer

Q472) Which isomeric dibromotoluene is most difficult to make from toluene? Show Answer

Q473) Nitration of salicylic acid gives: Show Answer

Q474) Aniline is reacted with bromine water and the resulting product is treated with an aqueous solution of
sodium nitrite in the presence of dilute HCl. The compound so formed is treated with fluoroboric acid which
is subsequently heated dry. The final product is: Show Answer

Q475) Which of the following is a common donor atom in ligands? Show Answer

Q476) The reaction of aniline with acetyl chloride in presence of NaOH gives: Show Answer

Q477) Which of the following will exhibit maximum ionic conductivity? Show Answer

Q478) Dipole moment of p-nitroaniline, when compared to nitrobenzene (X) and aniline (Y) will be: Show Answer

Q479) The structure of iron pentacarbonyl is: Show Answer

Q480) Turnbull’s blue is: Show Answer

Q481) The trivial name among the following is Show Answer

Q482) The overlapping in benzene is in carbon-carbon orbitals of the type: Show Answer

Q483) Change in composition of coordination sphere yields which type of isomer? Show Answer

Q484) The effective atomic number rule is less likely to apply if the metal-ligand bond: Show Answer

Q485) Potassium ferrocyanide is an example of Show Answer

Q486) 1-phenyl, 2-chloropropane on treatment with aqueous KOH gives mainly: Show Answer

Q487) Which class of compounds can exhibit geometrical isomerism? Show Answer

Q488) A new carbon-carbon bond is formed in: Show Answer

Q489) Which of the following compounds can exhibit tautomerism? Show Answer

Q490) The most basic compound among the following is: Show Answer

Q491) Which of the following has least oxidation state of Fe? Show Answer

Q492) Which is an excellent antiseptic? Show Answer

Q493) Scientist who explained the structures and isomerism in the complex compound was: Show Answer

Q494) The cation that does not form an ammine complex with excess of ammonia is: Show Answer

Q495) The complex ion which has the highest magnetic moment among the following is Show Answer

Q496) Which of the following has highest boiling point? Show Answer

Q497) A nitrogen containing organic compound on heating with chloroform and alcoholic KOH evolved very
unpleasant smelling vapours. The compound could be: Show Answer

Q498) Which of the following 0.1 M complex compound solutions will have the minimum electrical conductivity? Show Answer

Q499) False statement is Show Answer

Q500) The compound 2,2’-bipyridine has the structure Show Answer

Q501) Diethylenetriammine is: Show Answer

Q502) Aniline reacts with excess of bromine to give: Show Answer

Q503) In SCN ligand if N is attached to central atom, the name of ligand is: Show Answer

Q504) One of the following statements regarding Reimer-Tiemann reaction is false: Show Answer

Q505) The structure representing a heterocyclic compound is Show Answer

Q506) Nitroethane can exhibit one of the following kind of isomerism Show Answer

Q507) Benzaldehyde reacts with excess of anhydrous ethyl alcohol in the presence of HCl, gives: Show Answer

Q508) Which pair of isomerism is not possible together? Show Answer

Q509) Which will give chiral molecule? Show Answer

Q510) The neutral ligand is: Show Answer

Q511) p-nitro benzldehyde reacts with concentrated NaOH solution at room temperature to give: Show Answer

Q512) But-1-ene and cyclobutane exhibit Show Answer

Q513) The groups satisfying the secondary valencies of a cation in a complex are called: Show Answer

Q514) Benzene was dicovered by: Show Answer

Q515) Which of the following statements is not correct? Show Answer

Q516) Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives: Show Answer

Q517) Which of the following has maximum probability of showing tautomerism? Show Answer

Q518) The halide which undergoes nucleophilic substitution most readily is: Show Answer

Q519) The ′E′-isomer is Show Answer

Q520) The Baeyer angle strain is minimum in Show Answer

Q521) Among the following ions, which one has the highest unpaired electrons? Show Answer

Q522) Complexes with bidentate ligands are called: Show Answer

Q523) The compound which result from the coordination of carbon monoxide are known as Show Answer

Q524) The insecticide, germicide gammexane is a formulation for: Show Answer

Q525) Which of the following complex ions is expected to absorb visible light? Show Answer

Q526) Which statement is true? Show Answer

Q527) Which can be used for carrying out electrophilic aromatic substitution? Show Answer

Q528) Which of the following can participate in linkage isomerism? Show Answer

Q529) The number of ions formed when cuprammonium sulphate is dissolved in water is Show Answer

Q530) Tautomerism is not exhibited by : Show Answer

Q531) In coal-tar fraction of heavy oil, the aromatic compound present is: Show Answer

Q532) Optical isomerism is shown by octahedral complexes Show Answer

Q533) Which can be hydrolysed most easily? Show Answer

Q534) The most stable configuration of n butane will be Show Answer

Q535) Anhydrous aluminium chloride is used in Friedel-Craft’s reaction because it is: Show Answer

Q536) Which of the following has lowest boiling point? Show Answer

Q537) All ligands are: Show Answer

Q538) Aspirin is known as: Show Answer

Q539) Which of the following has on optical isomer? Show Answer

Q540) The property by virtue of which a compound can rotate the plane of polarised light is known as Show Answer

Q541) Which one of the following is an inner orbital complex as well as diamagnetic in nature? Show Answer

Q542) Benzene reacts with…..to give acetophenone. Show Answer

Q543) Which group would you introduce into a drug or a dye to make it water soluble? Show Answer

Q544) Vanillin, used as a flavouring agent is: Show Answer

Q545) Which one is a mixed ketone? Show Answer

Q546) Transition metals can form complexes in: Show Answer

Q547) Which molecule has tetrahedral geometry? Show Answer

Q548) Which of the following Fischer projection formula is same as D-glyceraldehyde? Show Answer

Q549) Which of the following is non-ionizable? Show Answer

Q550) Increasing order of expected keto content Show Answer

Q551) Which is colourless complex? Show Answer

Q552) Which is not a reasonable structure for dimethyl benzene? Show Answer

Q553) A mixture of benzene and aniline can be separated by: Show Answer

Q554) The electrophile involved in the above reaction is: Show Answer

Q555) Benzoyl Chloride is prepared from benzoic acid by: Show Answer

Q556) Which of the following ions forms most stable complex compound? Show Answer

Q557) Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?
(Atomic no. Cr=24, Mn=25, Fe=26, Co=27) Show Answer

Q558) Which of the following statements is not correct? Show Answer

Q559) When phenol is reacted with chloroform and an alkali like NaOH, the compound formed is salicyladehyde. If
we use pyrene in place of chloroform the product obtained is: Show Answer

Q560) Which of the following is most powerful meta directing group? Show Answer

Q561) Which among the following compounds will show metamerism? Show Answer

Q562) Formation of complex compound can be detected by: Show Answer

Q563) The complex that violates the EAN: Show Answer

Q564) EDTA is a…..ligand. Show Answer

Q565) Thymol, a phenol derivative is mainly used as: Show Answer

Q566) Which of the following complex has zero magnetic moment (spin only)? Show Answer

Q567) Which compound is zero valent metal complex? Show Answer

Q568) The tetrahedral crystal field splitting is only…..of the octahedral splitting. Show Answer

Q569) According to IUPAC nomenclature sodium nitroprusside is named as Show Answer

Q570) The chemical name of DDT is: Show Answer

Q571) Cumene is: Show Answer

Q572) In Etard’s reaction toluene is oxidised to benzaldehyde using: Show Answer

Q573) Which of the following will exhibit geometrical isomerism? Show Answer

Q574) Ferrocene is: Show Answer

Q575) Which one is an outer orbital complex? Show Answer

Q576) Which ion shows only the coordination number 4 in complexes? Show Answer

Q577) Which of the following is not an isomer of but-1-yne? Show Answer

Q578) Which of the following is wrong statements? Show Answer

Q579) Which of the following represents a chelating ligand? Show Answer

Q580) CuCl reacts with KCN solution forming a complex. Coordination number of copper in the complex is: Show Answer

Q581) The terms stereoisomers, enantionmers and diastereomers will refer Show Answer

Q582) Aniline was acetylated. The product on nitration followed by alkaline hydrolysis gave: Show Answer

Q583) Which is the structure of compound 2-(1-cyclobutenyl)-1-hexene? Show Answer

Q584) On explosion TNT gives: Show Answer

Q585) Hexafluoroferrate(III) ion is an outer orbital complex. The number of unpaired electrons present in it is: Show Answer

Q586) Which one amongst the following, exhibit geometrical isomerism? Show Answer

Q587) Chiral molecules are those which are Show Answer

Q588) At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because Show Answer

Q589) A group of atoms can function as a ligand only when Show Answer

Q590) 2-methyl phenol is: Show Answer

Q591) For blasting purpose TNT is mixed with: Show Answer

Q592) During the debromination of meso-dibromobutane, the major compound formed will be Show Answer

Q593) Nitration of benzene is: Show Answer

Q594) Reimer-Tiemann reaction involves a: Show Answer

Q595) Which does not have a carboxyl group? Show Answer

Q596) The oxidation state of Ag in Tollens’ reagent is: Show Answer

Q597) Which of the following is not isomeric with diethyl ether? Show Answer

Q598) Which of the following compounds will show a negative test with phenyl hydrazine? Show Answer

Q599) Friedel-Craft’s reaction is not possible in: Show Answer

Q600) Among the following, the correct statement is Show Answer

Q601) In which of the following p-electrons of the halogens are not involved in delocalisation? Show Answer

Q602) Ethylene diamine is an example of Show Answer

Q603) In chlorobenzene, the —Cl group: Show Answer

Q604) Complexation is shown by: Show Answer

Q605) AgO in Ag(II) complex which is: Show Answer

Q606) Acylation of benzene to produce aliphatic aromatic ketones is called: Show Answer

Q607) Chlorobenzene is prepared commercially by: Show Answer

Q608) When ethyl benzoate is hydrolysed with aqueous alkali, the products present in the medium are: Show Answer

Q609) Which of the following is more basic than aniline? Show Answer

Q610) Name of some compounds are given below. Which one is not in IUPAC system? Show Answer

Q611) For which transition metal ions are low spin complexes possible? Show Answer

Q612) Which one is monodentate ligand? Show Answer

Q613) Cyclic hydrocarbon molecule A has all the carbons and hydrogens in a single plane. All the carbon-carbon
bonds are of same length and less than 1.54 Å and more than 1.34 Å. The C— C—C bond angle will be: Show Answer

Q614) Chlorine reacts with benzaldehyde to give: Show Answer

Q615) Phenol is: Show Answer

Q616) Which one is example of octahedral complex? Show Answer

Q617) Which one of the following statement is correct? Show Answer

Q618) Which of the following fractions obtained in fractional distillation of coal-tar contains benzene and toluene? Show Answer

Q619) The tetrahedral complexes have coordination number Show Answer

Q620) The C—C bond length in benzene is ……than C—C bond length in alkenes. Show Answer

Q621) Which are generally used for preparing derivative of aldehydes and ketones? Show Answer

Q622) En is an example of a: Show Answer

Q623) In which of the following ions has the metal atom EAN as 36? Show Answer

Q624) A characteristics group test for phenolic gp. is: Show Answer

Q625) Which of the following statements is/are incorrect? Show Answer

Q626) Gives are (i) cyclohexanol; (ii) acetic acid; (iii) 2, 4, 6-trinitrophenol; and (iv) phenol. In these the order of
decreasing acidic character will be: Show Answer

Q627) Phenol and benzoic acid can be distinguished by: Show Answer

Q628) The hypothetical complex chloro diaquatriammine cobalt(II) chloride can be represented as: Show Answer

Q629) Which is expected to be paramagnetic? Show Answer

Q630) Among the following four compounds: Show Answer

Q631) Cis-trans -isomerism is found in square planar complexes of the molecular formula: (a and b are
monodentate ligands) Show Answer

Q632) Which ion produces a small crystal field splitting (a weak ligand field)? Show Answer

Q633) Benzene undergoes substitution reaction more easily than addition because: Show Answer

Q634) Isomers have essentially identical Show Answer

Q635) Which of the following pair is not correctly matched? Show Answer

Q636) CuCl dissolves in ammonia forming a complex. The coordination number of copper in the complex is: Show Answer

Q637) Schiff’s bases are formed when aniline is condensed with: Show Answer

Q638) Which of the following is not an organometallic compound? Show Answer

Q639) Which of the following is not an organometallic compound? Show Answer

Q640) The formula of sodium nitroprusside is: Show Answer

Q641) The type of isomerism shown by, 6,6’-disitrodiphenic acid is Show Answer

Q642) Which one of the following compounds forms benzoic acid on oxidation? Show Answer

Q643) Glycinato ligand is: Show Answer

Q644) The example of coordination isomerism is Show Answer

Q645) Coordination compounds have great importance in biological systems. In this context which of the following
statement is incorrect? Show Answer

Q646) Aniline on treating with phosgene gives: Show Answer

Q647) On boiling with conc. hydrobromic acid, phenylethylether will yield: Show Answer

Q648) Enol form is more stable in Show Answer

Q649) Which one readily accepts a proton? Show Answer

Q650) The phenomenon of optical activity will be shown by: Show Answer

Q651) Which one of the following will be able to show cis-trans-isomerism?
(A A′ is unsymmetrical bidentate ligand, ABCD are unidentate ligands.) Show Answer

Q652) The coordination number of a metal in coordination compound is Show Answer

Q653) Which of the following compounds shows optical isomerism? Show Answer

Q654) Mark the correct statement Show Answer

Q655) Which among the following will be named as dibromidobis (ethylene diamine) chromium (III) bromide? Show Answer

Q656) Which one of the following complex is an outer orbital complex?
(Atomic no. Mn=25, Fe=24, Co=27, Ni=28) Show Answer

Q657) Benzene can be directly obtained from: Show Answer

Q658) Chlorobenzene on treatment with Raney nickel or Al in presence of alkali gives: Show Answer

Q659) The compound that undergoes decarboxylation most readily under mild condition is: Show Answer

Q660) Which ion is paramagnetic? Show Answer

Q661) Which of the following compounds shows optical isomerism? Show Answer

Q662) Benzaldehyde, when heated with concentrated KOH solution, gives: Show Answer

Q663) 3-chloro-4-methyl benzene sulphonic acid on steam distillation gives: Show Answer

Q664) Which of the following is not an organometallic compound? Show Answer

Q665) Which of the following pairs of compounds are enantiomers? Show Answer

Q666) The complex used as an anticancer agent is Show Answer

Q667) Dyes are formed when diazonium salts react with: Show Answer

Q668) Potassium ferrocyanide is a Show Answer

Q669) The primary and secondary valencies of chromium in the complex ion, dichlorodioxalatochromium (III) , are
respectively. Show Answer

Q670) The correct statement related to IUPAC nomenclature is Show Answer

Q671) Which of the following isomerism is shown by ethyl acetoacetate? Show Answer

Q672) p-nitrophenol is stronger acid than phenol because nitro group is: Show Answer

Q673) Among the following group, which deactivates benzene ring for electrophilic substitution: Show Answer

Q674) Iron has lowest oxidation state in: Show Answer

Q675) The dihedral angle between the two methyl groups in Gauch conformation of n butane is Show Answer

Q676) Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is: Show Answer

Q677) Which of the following cations does not form an ammine complex with excess of ammonia? Show Answer

Q678) Which aromatic acid among the following is weaker than simple benzoic acid? Show Answer

Q679) Which of the following has asymmetric C-atom? Show Answer

Q680) Racemic tartaric acid is optically inactive due to Show Answer

Q681) Nitration of aniline is done in: Show Answer

Q682) A bridging ligand possesses: Show Answer

Q683) What is the neutralization equivalent of benzoic acid? Show Answer

Q684) m-chlorobenzaldehyde on reaction with conc. KOH at room temperature gives: Show Answer

Q685) Excess of silver nitrate solution is added to 100 mL of 0.01 M pentaaqua chloro chromium (III) chloride
solution. The mass of silver chloride obtained in grams is [Atomic mass of silver is 108]. Show Answer

Q686) A similarity between optical and geometrical isomerism is that : Show Answer

Q687) The number of possible theoretical conformations of n-butane are Show Answer

Q688) Salicylic acid when treated with zinc dust gives: Show Answer

Q689) Which of the following species is most stable? Show Answer

Q690) Which of the following reacts with KCN to form benzoin? Show Answer

Q691) Which one is an organometallic compound in the following? Show Answer

Q692) The formula of picramide is: Show Answer

Q693) An alkane forms isomers if minimum number of C-atom is: Show Answer

Q694) Which will form geometrical isomers? Show Answer

Q695) Choose the option which show correct preferential order of groups among the following Show Answer

Q696) Which of the following is polycyclic compound? Show Answer

Q697) Nitrosobenzene can be isolated from nitrobenzene under: Show Answer

Q698) Which of the following complexes is an outer orbital complex? Show Answer

Q699) The function of anhydrous aluminium chloride in the Friedel-Crafts reaction is: Show Answer

Q700) Coordination isomerism is caused by interchange of ligands between the Show Answer

Q701) Which aldehyde is used in the manufacture of perfumes? Show Answer

Q702) Which of the following statements is not correct? Show Answer

Q703) Benzene is a resonance hybrid mainly of two Kekule structures. Hence: Show Answer

Q704) Keto form is more stable in Show Answer

Q705) Which pair of carbon skeleton is an example of isomerism? Show Answer

Q706) Electrolytic reduction of nitrobenzene in weak acidic medium gives: Show Answer

Q707) In complexes, metal atom acts as: Show Answer

Q708) Which of the following compounds exhibit linkage isomerism? Show Answer

Q709) The most stable conformation of chlorohydrin at room temperature is Show Answer

Q710) Which one has square planar geometry? Show Answer

Q711) Which exhibits highest molar conductivity? Show Answer

Q712) Coordination compounds have great importance in biological systems. In this context which of the following
statement is incorrect? Show Answer

Q713) Which of the following pairs represents linkage isomers? Show Answer

Q714) Chlorine is most reactive in: Show Answer

Q715) The C—C bond order in benzene is close to: Show Answer

Q716) Phenol can be converted into salicylic acid by: Show Answer

Q717) The formula of dichlorobis (urea) copper(II) is: Show Answer

Q718) Aromaticity of benzene is due to: Show Answer

Q719) The coordination number of a central metal atom in a complex is determined by Show Answer

Q720) The true statement about benzene is: Show Answer

Q721) Which has highest paramagnetism? Show Answer

Q722) Which is not true ligands metal complex? Show Answer

Q723) Acetophenone on oxidation by perbenzoic acid gives phenyl acetate. The reaction is named as: Show Answer

Q724) Friedel-Craft’s reaction does not occur in case of: Show Answer

Q725) Salol is used as: Show Answer

Q726) Presence of nitro gp. in benzene ring: Show Answer

Q727) Which of the following complexes will show geometrical as well as optical isomerism? (en =ethylene
diamine) Show Answer

Q728) The huge number of organic compounds is due to the fact that Show Answer

Q729) Which one of the following compounds when dissolved in water, gives a solution with pH more than 7? Show Answer

Q730) Formula of ferrocene is: Show Answer

Q731) Which one of the following has largest number of isomers?
(R=alkyl group, en=ethylenediamine) Show Answer

Q732) Which complex is likely to show optical activity? Show Answer

Q733) In the compound lithium tetrahydroaluminate, the ligand is Show Answer

Q734) Statement 1: Highly charged cations are expected to form most strongly acidic hydrated cations
Statement 2: The acidity of a hydrated metal ion depends on the strength of the bond between cation
and oxygen Show Answer

Q735) Statement 1: Hydrazine has two N as donor atoms and behaves as a chelating ligand
Statement 2: Hydrazine is a neutral ligand Show Answer

Q736) Statement 1: EDTA forms complexes with a large number of metal ions
Statement 2: It coordinates with 6 points of attachement to the metal, 4 O-atoms and two N atoms Show Answer

Q737) Statement 1: A compound whose molecule has D configuration will always be dextrorotatory
Statement 2: Compounds having D configuration may be dextrorotatory or levorotatory Show Answer

Q738) Statement 1: Geometrical isomerism is also called C is- trans isomerism.
Statement 2: Tetrahedral complexes shows geometrical isomerism Show Answer

Q739) Statement 1: A hydroxy group directly attached to a carbonyl group constitutes a carboxyl group
Statement 2: Ester is a family of carboxylic acid derivatives in which – OH group is altered by other
group Show Answer

Q740) Statement 1: In keto-enol tautomerism of dicarbonyl compounds, the enol form is preferred in
contrast to the keto-form
Statement 2: The enol form is more stable due to resonance Show Answer

Q741) Statement 1: The conversion of an optically active compound into its enantiomer is called Walden
inversion
Statement 2: A racemic mixture is optically inactive due to internal compensation Show Answer

Q742) Statement 1: Staggered form is less stable than the eclipsed form
Statement 2: The conformation in which the bond pairs of two central atoms are very far from one
another is called staggered form Show Answer