The correct statement(s) related to oxoacids of phosphorous is(are): (a) Upon heating, \( \mathr...

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The correct statement(s) related to oxoacids of phosphorous is(are):
(a) Upon heating, \( \mathrm{H}_{3} \mathrm{PO}_{3} \) undergoes a disproportionation reaction to produce \( \mathrm{H}_{3} \mathrm{PO}_{4} \) and \( \mathrm{PH}_{3} \).
(b) While \( \mathrm{H}_{3} \mathrm{PO}_{3} \) can act as a reducing agent, \( \mathrm{H}_{3} \mathrm{PO}_{4} \) cannot.
(c) \( \mathrm{H}_{3} \mathrm{PO}_{3} \) is a monobasic acid.
(d) The \( \mathrm{H} \) atom of the \( \mathrm{P}-\mathrm{H} \) bond in \( \mathrm{H}_{3} \mathrm{PO}_{3} \) is not ionizable in water.
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