Acetamide is less basic than aniline because
1.it is an aliphatic compound
2.of greater elcetron withdrawing effect of adjacent carbonyl group
3.its molecular mass is low
4.of intermolecular H-bonding.
Posted Date:-2021-09-28 17:15:42
Acid amides upon treatment with KOH and bromine give amines. The reaction is called
1.Hofmann bromamide reaction
2.Gabriel phthalimide reaction
3.Rosenmunds reactions
4.Riemers reaction
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Amino group in aniline is
1.ortho and para directing and activating
2.ortho and para directing
3.ortho directing
4.None of above
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Ammonia and phthalic acid react to produce
1.Phthalamide
2.o-Amino benzoic acid
3.0-phenylenediamine
4.Phthalimide.
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An organic compound A reacts with nitrous acid to form N-methyl-N-nitrosoethanamine. A can be obtained by reducation of
1.Propanenitrile
2.Acrylonitrile
3.Methylisocyanate
4.Ethylisocyanide.
Posted Date:-2021-09-28 17:15:42
Aniline black is obtained by the action of aniline with
1.sodium dichromate and sulphuric acid
2.conc. hydrochloric acid
3.conc. nitric acid
4.water
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Aniline condenses with benzaldehyde to give
1.N benzoyl aniline
2.benzoyl aniline
3.benzal aniline
4.N benzal aniline
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Aniline is normally purified by
1.vacuum distillation
2.steam distillation
3.simple distillation
4.pressure distillation
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Aniline is purified by
1.smelting
2.distillation with pressure
3.sublimation
4.steam distillation
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Aniline reacts with dl. HCl and HONO at 00C to form
1.diazo compound
2.azo compound
3.nitro compound
4.benzene
Posted Date:-2021-09-28 17:15:42
Benzoyl chloride reacts with benzenamine in the presence of a base to form
1.Benzamide
2.Hydrobenzamide
3.N-Phenylethanamide
4.N-Phenylbenzamide.
Posted Date:-2021-09-28 17:15:42
Diazonium salts are used in the solutions in which they are prepared because they arecorrosive
1.not obtained in the solid state
2.explosive
3.poisonous
4.Vinyl alcohol.
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ethyl amine is
1.basic
2.neutral
3.amphoteric
4.acidic
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Further nitration of nitrobenzene by treatment with nitrating mixture priduces
1.1 3-Dinitrobenzene
2.1 4-Dinitrobenzene
3.1 3 5-Trinitrobenzene
4.no reaction will occur.
Posted Date:-2021-09-28 17:15:42
Heisenberg test can be used to distinguish between
1.primary amines secondary amines and tertiary amine
2.primary amines and secondary amines
3.primary amines and tertiary amines
4.All the above
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In order to produce ethyl isothiocyanate which of the following reagents are required ?
1.Ethyl amine and sulpyur
2.Ethanamide and sulpyur
3.Ethyl carbylamine and sulphur
4.Ethyl cyanide and sulphur.
Posted Date:-2021-09-28 17:15:42
Methyl carbylamine is treated with ozone the product formed is
1.Formic acid
2.Formic acid and methyl amine
3.Methyl isocyanate
4.Formaldimine.
Posted Date:-2021-09-28 17:15:42
N-nitrosoamine when warmed with phenol and conc. sulphuric acid gives green colouration. The amine is
1.quaternary salt
2.secondary amine
3.tert. amine
4.Vinyl alcohol.
Posted Date:-2021-09-28 17:15:42
Nitrobenzene when reduced with Sn and HCl gives
1.hydrazobenzene
2.azoxy benzene
3.aniline
4.None of these
Posted Date:-2021-09-28 17:15:42
One mole of ethlamine when reacts with nitrous acid will produce dinitrogen gas equal to
1.1 L at S.T.P.
2.22.4 L at S.T.P.
3.11.2 L at S.T.P.
4.unpredictable.
Posted Date:-2021-09-28 17:15:42
Propionamide when heated with bromine and NaOH givesPropyl amine
1.Ethyl amine
2.Propyl amine
3.Diethyl amine
4.None of these
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Schiffs base on reduction give
1.sec. amine
2.aniline
3.tert. amine
4.p-amine
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Schiffs bax is obtaind by the action of
1.p-amines with aldehydes
2.p-amines with acid anhydrides
3.p-amines with acid chloride
4.All the above
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Secondary amine can be produced by
1.Reduction of isocyanides
2.Reduction of amides
3.Reduction of aldehydes
4.Reduction of nitrobenzene
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Shape of amines is
1.planar triangular
2.square planar
3.tetrahedral
4.pyramidal
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Sodalime decarboxylation of sodiumglycinate produces
1.Glycine
2.Ethanoic acid
3.Methylamine
4.Alanin.
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Sweet spiritof nitre is
1.Ethyl nitrite
2.Nitrobenzene
3.Chlorobenzene
4.Nitromethane.
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Tertiary nitroalkane cannot tautomerise because
1.their tautomer forms are highly unstable
2.it do not contain any multiple bond
3.it do not have labile H atom
4.it is not basic in nature.
Posted Date:-2021-09-28 17:15:42
Tertiary nitroalkanes cannot tautomerise because they
1.are not stable
2.are strong base
3.do not contain labite hydrogen
4.All the above
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The main product of bromination of acetanilide in glacial acetic acid is
1.o-bromoaniline
2.p-bromoaniline
3.p-bromoacetanilide
4.2 4 6-tribromoacetanilide.
Posted Date:-2021-09-28 17:15:42
The main product of reduction of nitrobenzene with lithium aluminium hydride is
1.Azoxybebzene
2.Aniline
3.Azobenzene
4.Diazonium salt.
Posted Date:-2021-09-28 17:15:42
The main product of the reaction of ethyl bromide and alcoholic of silver nitrite is
1.ethyl cyanide
2.nitroethane
3.ethene
4.ethyl nitrite.
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The reaction of amines with methyl iodide leading to the formation of quarternary ammonium salts is called
1.Hofmanns reaction
2.Exhaustive methylation
3.Benzoylation
4.Kolbes reaction
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Urea the first organic compound was synthesised in the laboratory by
1.Hofmann
2.Wohler
3.Thomson
4.Riemer
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When an aqueous solution f ethylamine and iron (III) chloride are mixed
1.a colourless solution is formed
2.brown precipitate is formed
3.violet coloured solution is produced
4.black precipitate is formed.
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When chloroform primary amine and alcoholic KOH react a bad smelling compound is formed which is
1.alkyl isocyanate
2.alkyl isocyanide
3.alkyl amine
4.alkyl cyanide
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Which compound is obtained when ethyl isocyanate is hydrolysed?
1.Propionamide
2.Ethyl cyanide
3.Ethyl acetate
4.Ethyl amine
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Which is least reactive to nitratio ?
1.Benzene
2.Nitrobenzene
3.Chlorobenzene
4.Aniline.
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Which of following substance is insoluble in water but gives crystalline precipitate with hydrochloric acid ?
1.Methyl amine
2.Acetamide
3.Aniline
4.Dimethyl amine.
Posted Date:-2021-09-28 17:15:42
Which of the following amine is stronger base as compared to ammonia?
1.Cyclohexylamine
2.Benzenamine
3.Diphenyl amine
4.Triphenyl amine.
Posted Date:-2021-09-28 17:15:42
Which of the following amine will not react with benzoyl chloride ?
1.isopropyl amine
2.p-toludine
3.N N-Diethyl aniline
4.N-methyl aniline.
Posted Date:-2021-09-28 17:15:42
Which of the following cannot show tautomerism ?
1.2-Methyl-2-nitropropane
2.2-Nitropropane
3.1-Nitropropane
4.Vinyl alcohol.
Posted Date:-2021-09-28 17:15:42
Which of the following combinations will not yield secondary amine?
1.Reduction of aldoximes
2.Reduction of carbylamines
3.Reduction of Schiffs bases
4.Reduction of N-Methylethanamide.
Posted Date:-2021-09-28 17:15:42
Which of the following compounds is expected to be maximum basic in nature?
1.Methyl amine
2.Ammonia
3.Ethyl amine
4.Aniline
Posted Date:-2021-09-28 17:15:42
Which of the following exists as Zwitter ion structure?
1.p-aminobenzene sulphonic acid
2.p-cresol
3.picric acid
4.salicylic acid.
Posted Date:-2021-09-28 17:15:42
Which of the following halides cannot be the starting material for preparation of p amines by Gabriel phthalaide reaction?
1.Phenyl chloride
2.2 chloroethanoic acid
3.Benzyl chloride
4.Vinyl alcohol.
Posted Date:-2021-09-28 17:15:42
Which of the following is a carcinogen?
1.Ethyl amine
2.N-nitroso amine
3.Aniline
4.Benzenediazonium chloride
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Which of the following is absorbed by HCl?
1.Methyl alcohol
2.Ethanamine
3.Acetylene
4.Ethylene
Posted Date:-2021-09-28 17:15:42
Which of the following is insoluble both in acid and water but soluble in aq caustic alkali?
1.Benzene sulphuric acid
2.N N dimethyl amino methane
3.Sulphanilic acid
4.Aniline
Posted Date:-2021-09-28 17:15:42
Which of the following is the most basic?
1.Esters
2.Ketones
3.Alcohol
4.Amines
Posted Date:-2021-09-28 17:15:42
Which of the following on reaction with chloroform produces carbylamine?
1.p-amine
2.sec-amine
3.tert amine
4.All of the above.
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Which of the following reagent can be used to convert benzene diazonium chloride to benzene?
1.Phosphorus acid
2.Phosphoric acid
3.Hypophosphoric acid
4.Metaphosphoric acid.
Posted Date:-2021-09-28 17:15:42
Which of the following species will give methyl orange by reaction with diazonium salt of sodium p-aminobenzene sulphonate ?aniline
1.vacuum distillation
2.N N-Dimethylaniline
3.m-nitro aniline
4.p-Cresol.
Posted Date:-2021-09-28 17:15:42
Which of the following structure can exist as Zwitter isn?
1.p-amino benzoic acid
2.Benzene diazonium chloride
3.o-amino benzene sulphonate ion
4.Benzene diazonium hydrogen sulphate.
Posted Date:-2021-09-28 17:15:42
Which of the following will give a primary amine upon hydrolysis?
1.Alkyl cyanide
2.Alkyl isocyanide
3.Oxime
4.None of these
Posted Date:-2021-09-28 17:15:42
Which of the following will not give dinitrogen gas with nitrous acid?
1.Propanamine
2.Methanamine
3.Trimethylamine
4.Isopropylamine.
Posted Date:-2021-09-28 17:15:42