Q.

Consider the following reagents:I. R-NCII.CHCl3III.COCl2IV.NaNO2+HClWhich of the following species are involved in the carbylamine test for primary amines?

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a

I and II

b

I and III

c

I and IV

d

II and III

answer is 1.

(Detailed Solution Below)

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Detailed Solution

Aliphatic and aromatic primary amines on heating with chloroform and ethanolic KOH form isocyanides or carbylamines which is known as carbylamine test and is used to test only primary amine.RNH2+CHCl2+3KOH→HeatRNC+3KCl+3H2O
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