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Question: One mole of calcium phosphide on reaction with excess of water gives...

One mole of calcium phosphide on reaction with excess of water gives

A

One mole of phosphine

B

Two moles of phosphoric acid

C

Two moles of phosphine

D

One mole of phosphorus pentoxide

Answer

Two moles of phosphine

Explanation

Solution

Ca3P2+6H2O→2PH3+3Ca(OH)2Ca_{3}P_{2} + 6H_{2}O \rightarrow 2PH_{3} + 3Ca(OH)_{2}