See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

(A) 3 HCHO 50% conc.NaOH HCOO Na CH OH      (B) 4 2 2 2 3 P 3NaOH 3H O 3NaH PO PH      (C) 3 2 2 5Br BrO 6H 3Br 3H O        (D)    h 2 2 2 2 1 H O H O O 2