See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

HOOC - CH2 - C - CH COOH X is COOH 3 3 2 CH COCH 3CO    Anhydride  NaOOC - CH2 - C - CH COONa COONa O O 3 CH3COCl Py 3 3 E.g.RCOONa CH COCl RCOOCOCH HCl   