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}} $
