In the reaction shown below calcium phosphate slag is formed from a reaction of calcium oxide with phosphoric anhydride. 6 CaO(s) + P₄O₁₀(l) → 2 Ca₃(PO₄) ₂(l)
CaO is a(n) ________ oxide,and P₄O₁₀is a(n) ________ oxide.

Question

Quizplus · Accepted Answer

Calcium oxide (CaO) is a basic oxide, as it reacts with acids to form salts and neutralizes them. Phosphoric anhydride (P2O5), on the other hand, is an acidic oxide, as it reacts with bases to form salts and neutralizes them. Therefore, the best choice is C, where CaO is a basic oxide and P2O5 is an acidic oxide.

In the Reaction Shown Below Calcium Phosphate Slag Is Formed