Question

The correct statement/statements from the options given below is/are:
(A) Diazonium salts of aromatic amines are less stable than diazonium salts of aliphatic amines.
(B) Ethylamine is insoluble in water.
(C) Gabriel phthalimide synthesis can be used to prepare primary amines.
(D) Because of +R-effect of–NH2 group, aniline will undergo Friedel-Crafts acylation reaction.
Choose the correct answer from the options given below:

• A. (A) and (B) only
• B. (A), (C) and (D) only
• C. (A) and (C) only
• D. (B), (C) and (D) only

Answer 1

The Correct Option is B

The following analysis addresses statements concerning chemical compounds and reactions:

• (A) Aromatic amine diazonium salts exhibit greater stability compared to their aliphatic counterparts, attributed to resonance stabilization. Consequently, statement "A" is validated.
• (B) Ethylamine demonstrates water solubility due to its capacity for hydrogen bonding with water molecules. This renders statement "B" invalid.
• (C) The Gabriel phthalimide synthesis is an efficient method for primary amine preparation, circumventing issues such as over-alkylation. Therefore, statement "C" is accurate.
• (D) The NH₂ group in aniline exerts a +R effect, reducing its reactivity in Friedel-Crafts acylation owing to complex formation with the Lewis acid catalyst. This confirms statement "D" as correct.

Based on this comprehensive analysis, the accurate statements are (A), (C), and (D). The definitive answer is: (A), (C) and (D) only