The pair that contains two P-H bonds in each | vedclass

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(B) To determine the number of $P-H$ bonds,we examine the structures of the given phosphorus oxoacids:$1$. $H_3PO_2$ (Hypophosphorous acid): Contains

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$H_3PO_2$ and $H_4P_2O_5$

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(B) To determine the number of $P-H$ bonds,we examine the structures of the given phosphorus oxoacids:$1$. $H_3PO_2$ (Hypophosphorous acid): Contains two $P-H$ bonds.$2$. $H_3PO_3$ (Phosphorous acid): Contains one $P-H$ bond.$3$. $H_4P_2O_5$ (Pyrophosphorous acid): Contains two $P-H$ bonds (one on each phosphorus atom).$4$. $H_4P_2O_6$ (Hypophosphoric acid): Contains no $P-H$ bonds.Therefore,the pair containing two $P-H$ bonds in each molecule is $H_3PO_2$ and $H_4P_2O_5$.

The pair that contains two $P-H$ bonds in each of the oxoacids is

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