P-Block Elements Ques 238
Question: Phosphine is generally prepared in the laboratory
[CPMT 1983, 2003]
Options:
A) By heating phosphorus in a current of hydrogen
B) By heating white phosphorus with aqueous solution of caustic potash
C) By decomposition of
D) By heating red phosphorus with an aqueous solution of caustic soda
Show Answer
Answer:
Correct Answer: B