Which among the following oxoacids of phospho | vedclass

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(C) The disproportionation reaction is a reaction in which an element in an intermediate oxidation state is simultaneously oxidized and reduced. In $H

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Phosphonic acid $(H_3PO_3)$

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(C) The disproportionation reaction is a reaction in which an element in an intermediate oxidation state is simultaneously oxidized and reduced. In $H_3PO_3$ (phosphonic acid),the oxidation state of phosphorus is $+3$. It undergoes disproportionation upon heating to form $H_3PO_4$ (oxidation state $+5$) and $PH_3$ (oxidation state $-3$). The reaction is: $4H_3PO_3 \rightarrow 3H_3PO_4 + PH_3$.

Which among the following oxoacids of phosphorus shows a tendency of disproportionation?

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