STANDARDChemistry-Amines

STANDARD Chemistry Reactions of Amines Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 12

Given below are two statements: Statement-I : Primary aliphatic amines react with HNO₂ to give unstable diazonium salts. Statement-II : Primary aromatic amines react with HNO₂ to form diazonium salts which are stable even above 300 K. In the light of the above statements, choose the most appropriate answer from the options given below:

A

Both statement-I and statement-II are correct.

B

Both statement-I and statement-II are incorrect.

C

Statement-I is correct but statement-II is incorrect.

D

Statement-I is incorrect but statement-II is correct.

Correct Answer

Option C

Detailed Explanation

Primary aliphatic amines react with nitrous acid to form aliphatic diazonium salts which are unstable while aromatic amines react with nitrous acid at low temperature (273-278 K) to form diazonium salts, a very important class of compounds used for synthesis of a variety of aromatic compounds.

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