Question

Phosphine is prepared by the reaction of

• A. $P$ and $H_{2}SO_{4}$
• B. $P$ and $NaOH$
• C. $P$ and $H_{2}S$
• D. $P$ and $HNO_{3}$

Answer 1

Answer: (B)

$P$ and $NaOH$

Answer 2

$\underset { \text { (White) } } { \mathrm { P } _ { 4 } + 3 \mathrm { NaOH } + 3 \mathrm { H } _ { 2 } \mathrm { O } \rightarrow }$ $\underset{\text{Phosphine}}{PH_{3}} + \underset{\text{Sod. hypophosphite}}{3NaH_{2}PO_{2}}$