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Identify correct statements: (A) Primary amines do not give diazonium salts when treated with NaNO2 in acidic condition. (B) Aliphatic and aromatic primary amines on heating with CHCl3 and ethanolic KOH form carbylamines. (C) Secondary and tertiary amines also give carbylamine test. (D) Benzenesulfonyl chloride is known as Hinsberg's reagent. (E) Tertiary amines reacts with benzenesulfonyl chloride very easily. Choose the correct answer from the options given below: (1) (B) and (D) only (2) (A) and (B) only (3) (D) and (E) only (4) (B) and (C) only

1. (B) and (D) only
2. (A) and (B) only
3. (D) and (E) only
4. (B) and (C) only

Correct answer: (B) and (D) only

Solution

Option (B) is correct because both aliphatic and aromatic primary amines react with CHCl3 and ethanolic KOH to form carbylamines, which is a characteristic reaction. Option (D) is also correct as benzenesulfonyl chloride is indeed known as Hinsberg's reagent, used to differentiate between primary, secondary, and tertiary amines.

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