Question

Orthophosphoric acid $\underset{{220}^{\circ }}{\overset{gentleheat}{\to }}X$, What is/are correct about X?

• A. it is a tetra basic acid.
• B. It contains one P---O---P bond.
• C. It is a dibasic acid.
• D. On hydrolysis it produces metaphosphoric acid.

Answer 1

Answer: (A)

it is a tetra basic acid.

X is $H_4{P}_2{O}_7$ which is a tetra basic acid.