See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

        3 3 3 2 3 3 3 mole 1 mole 1 mole H PO is dibasic PCl 3H O H PO 3HCl    No. of moles of NaOH required = (1 × 2) + (3 × 1) = 5         3 4 5 2 3 4