Aliphatic Compounds Containing Nitrogen - Result Question 25

####26. Carbylamine test is performed in alc. KOH by heating a mixture of

(1984, 1M)

(a) chloroform and silver powder

(b) trihalogenated methane and a primary amine

(c) an alkyl halide and a primary amine

(d) an alkyl cyanide and a primary amine

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Answer:

Correct Answer: 26. (b)

Solution:

  1. RNH2+CHCl3KOHRNC ‘Carbylamine test’  isocyanide   (foul smell)  The above test is characteristic of primary amine and used to distinguish primary amine from other amines.

(Hofmann’s bromamide reaction)



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