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  4. One mole of calcium phosphide with excess water gives

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Q. One mole of calcium phosphide with excess water gives

Haryana PMTHaryana PMT 2011

Solution:

One mole of calcium phosphide with excess water gives two moles of phosphine.
$ Ca_{3}P_{2}+6H_{2}O\rightarrow 2PH_{3}+3Ca(OH)_{2} $