An amine C3H9N reacts with benzene sulphonyl chloride to form a w

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 Multiple Choice QuestionsMultiple Choice Questions

441.

Which of the following compounds will be suitable for Kjeldah1’s method for nitrogen estimation?


442.

The increasing order of basicity of the following compounds is:

  • (d) < (b) < (a) < (c)

  • (a) < (b) < (c) < (d)

  • (b) < (a) < (c) < (d)

  • (b) < (a) < (d) < (c)


443.

The compound that does not produce nitrogen gas by the thermal decomposition is

  • (NH4)2SO4

  • Ba(N3)2

  • (NH4)2Cr2O7

  • NH4NO2


444.

The correct order of basicity of the following compounds is

  • 1<2<3<4

  • 1<2<4<3

  • 2<1<3<4

  • 4<3<2<1


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445.

Amongst the following compounds, the one(s) which readily react with ethanolic KCN.

  • Ethyl chloride

  • Chlorobenzene

  • Benzaldehyde

  • Salicylic acid


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446.

An amine C3H9N reacts with benzene sulphonyl chloride to form a white precipitate which is insoluble in aq. NaOH. The amine is


B.

Since, the amine gives white precipitate with benzene sulphonyl chloride which is insoluble in aq. NaOH, so it must be a secondary amine (i.e., amine having RNHR group).

Among the given compound, only  is a secondary amine, so it represents the structure of given amines.


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447.

The reagent with which the following reaction is best accomplished is

                 

  • H3PO2

  • H3PO3

  • H3PO4

  • NaHSO3


448.

The reaction of aniline with chloroform under alkaline conditions leads to the formation of

  • phenylcyanide

  • phenylisonitrile

  • phenylcyanate

  • phenylisocyanate


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449.

When aniline is nitrated with nitrating mixture in ice cold condition, the major product obtained is

  • p-nitroaniline

  • 2,4-dinitroaniline

  • o-nitroaniline

  • m-nitroaniline


450.

The basicity of aniline is weaker in comparison to that of methyl amine due to

  • hyperconjugative effect of Me-group in MeNH2

  • resonance effect of phenyl group in aniline

  • lower molecular weight of methyl amine as compared to that of aniline

  • resonance effect of - NH2 group in MeNH2


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