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Give reasons: H3PO3 undergoes dispropo...

Give reasons:
`H_3PO_3` undergoes disproportionstion reaction but `H_3PO_4` does not

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In +3 oxidation state of phosphorus tends to disproportionate to higher and lower oxidation states / Oxidation state of P in `H_3PO_3` is +3 so it undergoes disproportionation but in `H_3PO_4` it is +5 which is the highest oxidation state, so it cannot.
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Give reasons : (a) H_(3)PO_(3) undergoes disproportination reaction but H_(3)PO_(4) does not (b) Dioxygen is a gas while sulphur is a solid (c ) When Cl_(2) reacts with excess of F_(2) compound formed is CiF_(3) " and not " FCl_(3) .

Give the disproportionation reaction of H_3PO_3 .

Give one disproportionation reaction of phosphorus acid (H_(3)PO_(3)) .

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