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Standard XII
Chemistry
Phosphine
Question
One mole of calcium phosphide on reaction with excess of water gives__________.
Two moles of phosphoric acid
One mole of phosphine
One mole of phosphorous penta-oxide
Two moles of phosphine
A
Two moles of phosphoric acid
B
One mole of phosphine
C
One mole of phosphorous penta-oxide
D
Two moles of phosphine
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Solution
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One mole of calcium phosphide on reaction with excess of water gives
Two moles of phosphine
C
a
3
P
2
+
6
H
2
O
→
2
P
H
3
+
3
C
a
(
O
H
)
2
Hence option C is correct.
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