In the following sequence of reactions,A →Reduction&nbs

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 Multiple Choice QuestionsMultiple Choice Questions

161.

Which one of the following gives amine on heating with amide?

  • Br2 in aqueous KOH

  • Br2 on alcoholic KOH

  • Cl2 in sodium

  • sodium in ether


162.

In the given set of reactions, 2-bromopropane Alc./HeatAgCN X LiAlH4 Y. The IUPC name of product Y is

  • N-methylpropanamine

  • N-isopropylmethanamine

  • Butan-2-amine

  • N-methylpropan-2-amine


163.

One of the following amide will not undergo Hofmann bromamide reaction

  • CH3CONH2

  • CH3CONHCH3

  • C6H5CONH2

  • CH3CH2CONH2


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164.

In the following sequence of reactions,

Reduction B HNO2 CH3CH2OH

The compound A is

  • propane nitrile

  • ethane nitrile

  • CH3NO2

  • CH3NC


B.

ethane nitrile

The compound A is ethane nitrile.

CH3CH2-CNEthane nitrile Reduction CH3CH2-NH2Ethylamine HNO2 CH3CH2OHEthyl alcohol 


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165.

The correct order of increasing basic nature for the bases NH3, CH3NH2 and (CH3)2NH in aqueous solution

  • CH3NH2 < NH3 < (CH3)2NH

  • NH< CH3NH<(CH3)2NH

  • CH3NH< (CH3)2NH < NH3

  • (CH3)2NH < NH<CH3NH


166.

Galbriel phthalimide synthesis is used in the preparation of primary amine from phthalimide, which of the following reagent is not used during the process?

  • KOH

  • NaOH

  • HCl

  • Alkyl halides


167.

High basicity of Me2NH relative to Me3N is attributed to :

  • effect of solvent

  • inductive effect of Me

  • shape of Me2NH

  • shape of Me3N


168.

Chlorobenzene gives aniline with

  • NH3/ Cu2O

  • NH3/ H2SO4

  • NaNH2

  • None of these


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169.

In the reaction RH2 HNO2 A + B + C↑ is:

  • NH3

  • N2

  • O2

  • CO2


170.

Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound of water during the reaction is continuously removed. The compound formed is generally known as

  • an amine

  • an imine

  • an enamine

  • a Schiff's base


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