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  4. The reaction of white phosphorus with a q . NaOH gives phosphine alongwith another phosphorus containing compound. This reaction is known as

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Q. The reaction of white phosphorus with $a q . NaOH$ gives phosphine alongwith another phosphorus containing compound. This reaction is known as

Redox Reactions

Solution:

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The oxidation number of phosphorus in $PH _{3}$ and $NaH _{2} PO _{2}$ is $-3$ and $+1$, respectively, i.e. here phosphorus is oxidised as well reduced. Therefore, this reaction is known as disproportionation reaction.