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phosphine is generally prepared in the l...

phosphine is generally prepared in the laboratory

A

By heating phosphorus in a current of hydrogen

B

By heating white phosphorus with aqueous of caustic potash

C

By decomposition of `P_(2)H_(4) " at " 110^(@)C`

D

By heating red phosphorus with an aqueous solution of caustic soda

Text Solution

Verified by Experts

The correct Answer is:
B
`P_(4) + 3NaOH + 3H_(2)O overset(Delta)rarr PH_(3) + 3NaH_(2)PO_(2)`
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