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Q.

Phosphine is prepared in the laboratory by the reaction of

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a

$P$ and $H_{2} S O_{4}$

b

$P$ and $N a O H$

c

$P$ and $H_{2} S$

d

$P$ and $H N O_{3}$

answer is B.

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Detailed Solution

$\underset{(White)}{P_{4}} + 3 NaOH + 3 H_{2} O \to \underset{Phosphine Sod. hypophosphite}{{PH}_{3}} + 3 {NaH}_{2} {PO}_{2}$

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Phosphine is prepared in the laboratory by the reaction of