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Question

Chemistry Question on p -Block Elements

Phosphine is prepared by the action of

A

P P and H2SO4H_2S O_4

B

PP and NaOHNaOH

C

PP and H2SH_2S

D

PP and HNO3HNO_3

Answer

PP and NaOHNaOH

Explanation

Solution

P4White Phosphorus\underset{\text{White Phosphorus}}{ {P_4 }} +3NaOHCausic soda+\underset{\text{Causic soda}}{ {3NaOH }} +3H2O+3H_2O \to PH3 Phosphine\underset{\text{ Phosphine}}{ {PH_3 }} +3NaH2PO2Sod. hypophosphite+\underset{\text{Sod. hypophosphite}}{ {3NaH_2PO_2 }}