See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

2 3 2 3 3 B O H O H BO   2 5 2 3 4 10 2 3 4 N O H O HNO P O H O H PO     2 Maleic anhydride + H O  H C COOH C COOH H Maleic acids H3PO4 & maleic acid are polyprotic acids.