The correct statement(s) related to oxoacids of phosphorous is(are)\

Question

Professor PC Thomas Classes · Answer

$\mathrm{H}_{3} \mathrm{PO}_{3}$ contains one $\mathrm{P}-\mathrm{OH}$ bond, hence act as a reducing agent but $\mathrm{H}_{3} \mathrm{PO}_{4}$ does not contain P-H bond so camnot act as reducing agent.\ \ $\mathrm{H}_{3} \mathrm{PO}_{3}$\ As $\mathrm{H}_{3} \mathrm{PO}_{3}$ contains two $\mathrm{P}-\mathrm{O}$ bonds so it is a dibasic acid.\ $\mathrm{P}-\mathrm{H}$ bond is not ionisable in $\mathrm{H}_{3} \mathrm{PO}_{3}$.\