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 Multiple Choice QuestionsMultiple Choice Questions

41.

Amine that cannot be prepared by Gabriel phthalimide synthesis is

  • aniline

  • benzylamine

  • methylamine

  • iso-butylamine


42.

Lactose is made of

  • α-D-glucose only

  • α-D-glucose and β-D-glucose

  • α-D-galactose and β-D-glucose

  • β-D-galactose and β-D-glucose


43.

Gabriel phthalimide reaction is used for the preparation of

  • primary aromatic amines

  • secondary amines

  • primary aliphatic amines

  • tertiary amines


44.

During, acetylation of amines, what is replaced by acetyl group ?

  • Hydrogen atom attached to nitrogen atom

  • One or more hydrogen atoms attached to carbon atom

  • One or more hydrogen atoms attached to nitrogen atom

  • Hydrogen atoms attached to either carbon atom or nitrogen atom


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45.

Electrolytic reduction of nitrobenzene in weakly acidic medium gives

  • aniline

  • nitrosobenzene

  • N-phenylhydroxylamine

  • p-hydroxyaniline


A.

aniline

Electrolytic reduction of nitrobenzene in weakly acidic medium gives aniline but in strongly acidic medium it gives p-aminophenol through the acid-catalysed rearrangement of the initially formed phenylhydroxylamine.

   C6H5NO2            in weakly acidic mediumElectrolytic reduction           C6H5NH2

Nitrobenzene                                                       Aniline


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46.

RCON3heatRNCOH2ORNH2This reaction is known as:

  • Schmidt reaction

  • Wurtz reaction

  • Curtius reaction

  • Gabriel phthalimide reaction


47.

Consider the following compounds:

Correct order of the basic nature of the above compounds:

 

  • I<II<III<IV

  • IV<II<III<I

  • I<III<IV<II

  • II<IV<III<I


48.

The correct order of basicity of:

  • A> B > C > D

  • D > C>A> B

  • B > D > C > A

  • D>A> B > C


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49.

Consider the following consersion,

The reagent 'X' will be:

  • H3PO2

  • Cu2Cl2

  • HgSO4/H2SO4

  • H+/H2O


50.

Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. The structure of coloured product would be:


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