7.15     Give the disproportionation reaction of H_{3}PO_{3} .

Answers (1)

When we heat, orthophosphorus acid (H3PO3) disproportionates into orthophosphoric acid (H3PO4) and phosphine (PH3).

\dpi{100} \overset{\:\:\:+3}{4H_3PO_3}\rightarrow \overset{\:\:\:-5}{3H_3PO_4}+\overset{-3}{\:\:\:\:PH_3}

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