MCQ
aq. $NaOH + P_4$ (white) $\rightarrow PH_3 + X;$ compound $X$ is
- ✓$NaH_2PO_2$
- B$NaHPO_4$
- C$Na_2CO_3$
- D$NaHCO_3$
✓
Answer
Correct option: A.
$NaH_2PO_2$
a
The reaction is,
The reaction is,
$P _4+3 NaOH +3 H _2 O \rightarrow PH _3+3 NaH _2 PO _2$
White phosphorus react with sodium hydroxide and water to produce phosphine and sodium hypophosphite. Sodium hydroxide - cold, concentrated solution. This reaction takes place slow.
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