Strong reducing behaviour of $\mathrm{H}_{3} \mathrm{PO}_{2}$ is due to\

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Professor PC Thomas Classes · Answer

(d) : All oxyacids of phosphorus which have $\mathrm{P}-\mathrm{H}$ bonds act as strong reducing agents. $\mathrm{H}_{3} \mathrm{PO}_{2}$ has two $\mathrm{P}-\mathrm{H}$ bonds hence, it acts as a strong reducing agent.\