P-Block Elements Ques 232

Question: Phosphine is prepared by the reaction of

[MP PET/PMT 1988]

Options:

A) $ P $ and $ H_2SO_4 $

B) $ P $ and $ NaOH $

C) $ P $ and $ H_2S $

D) $ P $ and $ HNO_3 $

Show Answer

Answer:

Correct Answer: B

Solution:

$ \underset{\text{(White)}}{\mathop{P_4+}}3NaOH+3H_2O\to $ $ \underset{Phosphine}{\mathop{PH_3}}+\underset{Sod\text{. hypophosphite}}{\mathop{3NaH_2PO_2}} $



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