See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

(for Q. 26 and 27):   3 2 1 O 2 Zn H O   O CHO OH 2 4 N H /  N N   Cyclic hydrazene O CHO  E O CHO , , O CHO  F  G Possible enolates  Aldol E   CHO  Aldol F   OH O  Aldol G    X  Z O