Question

State True or False.

Decomposition of calcium phosphate present in bone ash with concentrated sulphuric acid produces phosphoric acid.

• A. True
• B. False

Answer 1

The correct option is A True

Bone ash is Tricalcium phosphate in the form of hydroxyapatite ${Ca}_5\left(OH\right){\left(P{O}_4\right)}_3$. Phosphoric acid is obtained from hydroxyapatite when treated with sulphuric acid.
$2{Ca}_5{\left(P{O}_4\right)}_{3}OH+10H_{2}S{O}_4+18H_{2}O⟶6H_{3}P{O}_4+10CaS{O}_4.2H_{2}O$