Which of the following has the highest ratio | vedclass

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(B) The structures of the oxo-acids of phosphorus are as follows:$1$. Orthophosphoric acid $(H_3PO_4)$: It has $0$ $P-H$ bonds and $3$ $OH$ groups. Ra

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Hypophosphorous acid

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(B) The structures of the oxo-acids of phosphorus are as follows:$1$. Orthophosphoric acid $(H_3PO_4)$: It has $0$ $P-H$ bonds and $3$ $OH$ groups. Ratio = $0/3 = 0$.$2$. Hypophosphorous acid $(H_3PO_2)$: It has $2$ $P-H$ bonds and $1$ $OH$ group. Ratio = $2/1 = 2$.$3$. Phosphorous acid $(H_3PO_3)$: It has $1$ $P-H$ bond and $2$ $OH$ groups. Ratio = $1/2 = 0.5$.$4$. Pyrophosphoric acid $(H_4P_2O_7)$: It has $0$ $P-H$ bonds and $4$ $OH$ groups. Ratio = $0/4 = 0$.Comparing the ratios,Hypophosphorous acid has the highest ratio of $2$.

Which of the following has the highest ratio of reducing hydrogen atoms to $OH$ groups?

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