One mole of calcium phosphide on reaction with excess water gives
One mole of calcium phosphide on reaction with excess water gives
(a) one mole of phosphine
(b) two moles of phosphoric acid
(c) two moles of phosphine
(d) one mole of phosphorus pentoxide
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(c) Ca3 P2 + 6H2O →3Ca(OH)2 + 2PH3 ; i.e 2 moles of phosphine are produced from one mole of calcium phosphide
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Ca3P2+6H2O⇒3Ca(OH)2+2PH3
1 mol of Ca3P2=2 moles of PH3
It shows that one mole of calcium phosphide on reaction with excess of water gives 2 moles of phosphine.
Hence, Option C is Correct
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