Question

Phosphine cannot be prepared by which of the following reaction?

A

White P is heated with NaOH

B

Red P is heated with NaOH

C

is heated with water

D

Phosphorus trioxide is boiled with water

Medium
Solution
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Correct option is B)

Red phosphorous does not reacts with caustic alkalies (NaOH or KOH). Whereas white phosphorus reacts with caustic alkalies to produce phosphine.



Phosphine is also obtained when calcium phosphide is heated with water.



Phosphine is also obtained when phosphorus trioxide is boiled with water.

Solve any question of The p-Block Elements with:-
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