P-Block Elements Ques 335

Question: Sodium hydroxide solution reacts with phosphorus to give phosphine. To bring about this reaction, we need

[KCET 1989]

Options:

A) White phosphorus and dil. NaOH

B) White phosphorus and conc. NaOH

C) Red phosphorus and dil. NaOH

D) Red phosphorus and conc. NaOH

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Answer:

Correct Answer: B

Solution:

P4+3NaOH+3H2OPH3+NaH2PO4



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