Q. An organic compound 'A' on treatment with NH₃ gives 'B' which on heating gives 'C'. 'C' when treated with Br₂ in the presence of KOH produces ethylamine. Compound 'A' is

A) CH₃–CH(CH₃)–COOH
B) CH₃CH₂COOH
C) CH₃COOH
D) CH₃CH₂CH₂COOH
Explanation

[Solution from source] Hoffmann bromamide degradation removes one carbon, so ethylamine must come from propanamide (compound 'C'), which forms on heating ammonium propanoate ('B'), made from propanoic acid ('A') and NH₃. Acetic acid would give methylamine and butanoic acid would give propylamine. Answer (2).

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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