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One mole of calcium phosphorus on reaction with excess water gives
A. `1 mol` of phophine
B. `2 mol` of phosphoric acid
C. `2 mol` of phosphoric acid
D. `1 mol` of phosphoric pentoxide

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Correct Answer - C
Phosphine gas is obtained
`Ca_(3)P_(2)+6H_(2)Orarr3Ca(OH)_(2)+2PH_(3)`

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