What happens when {H}₃{PO}₃ is heated?

NCERT Class XII Chemistry
Chapter - The p-Block Elements
Questions with Solutions

Question : 52 of 74

Marks: +1, -0

What happens when

\mathrm{H}_3\mathrm{PO}_3

is heated?

Solution:

On heating phosphorous acid dispropotionates to giveorthophosphoric acid and phosphine.

4\mathrm{H}_3\mathrm{PO}_3 \rightarrow 3\mathrm{H}_3\mathrm{PO}_4 + \mathrm{PH}_3

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