1.

Phosphine is prepared in the laboratory by the reaction of

Answer»

P and `H_(2)SO_(4)`
P and NaOH
P and `H_(2)S`
P and `HNO_(3)`

Solution :`underset("(WHITE)")(P_(4))+3NaOH +3H_(2)O to underset("phosphine")(PH_(3))+ underset("Sod. Hypophosphite")(3NaH_(2)PO_(2))`


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