N_2 gas is liberated when [HCl + NaNO_2] reacts with the following compounds: (A) CH_3CH_2NH_2 (B) Urea (C) CH_3CONH_2 (D) C_6H_5NH_2. The answer is

JEE Main Chemistry question

gas is liberated when reacts with the following compounds: (A) (B) Urea (C) (D) . The answer is

(A)A, B, CCorrect
(B)B, C, D
(C)A, C, D
(D)A, B, D

Answer: (A)

Solution

Ethylamine, an aliphatic primary amine, forms an unstable diazonium salt that decomposes instantly, liberating : CH_3CH_2NH_2 + NaNO_2 + HCl \rightarrow CH_3CH_2OH + N_2 + H_2O + NaCl. Urea's two amino-type nitrogens are both deaminated by nitrous acid, liberating two moles of (the classical Van Slyke

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Question ID VK-150408