Predict the product,  from Chemistry Amines

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 Multiple Choice QuestionsMultiple Choice Questions

221.

Which of the following statements about primary amines is false?

  • Alkyl amine are stronger bases than aryl amines

  • Alkyl amines reacts with nitrous acid to produce alcohols

  • Aryl amines react with nitrous acid to produce phenols

  • Alkyl amines are stronger base than ammonia


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222.

Predict the product,


 


A.

With nitric acid (NaNO2) + HCl), primary aromatic amines give azo compounds and secondary aromatic amines gives nitroso compound


  

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223.

In a reaction of aniline, a coloured product C was obtained.

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224.

Which one of the following on reduction with lithium aluminium hydride yield a secondary amine?

  • Nitroethane

  • Methylisocyanide

  • Acetamide

  • Acetamide


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225.

Which of the following is more basic than aniline?

  • Diphenylamine

  • Triphenylamine

  • p-nitroaniline

  • p-nitroaniline

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226.

The correct increasing order of basic strength for the following compounds is 

  • II < III < I 

  • III < I < II

  • III < II < I

  • III < II < I

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227.

Which of the following reactions is appropriate for converting acetamide to methanamine?

  • Carbylamine reaction

  • Hoffmann hypobromamide reaction

  • Stephens reaction

  • Stephens reaction

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228.

The correct order of N-compounds in its decreasing order of oxidation states is

  • HNO3, NH4Cl, NO, N2

  • HNO3, NO,NH4Cl, N2

  • HNO3, NO, N2, NH4Cl

  • NH4Cl, N2, NO, HNO3


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229.

Which of the following compounds can form a zwitter ion?

  • Aniline

  • Acetanilide

  • Glycine

  • Benzoic acid


230.

Nitration of aniline in strong acidic medium also gives m-nitroaniline because

  • Inspite of substituents nitro group always goes to only m-position.

  • In electrophilic substitution reactions amino group is meta directive.

  • In acidic (strong) medium aniline is present as anilinium ion.

  • In absence of substituents nitro group always goes to m-position.


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