NEET Class neet Answered
the equivalent weight of the h3po3, when it disproportionate into the and h3po3 is
Asked by ssolaimuthu9 | 08 Jul, 2022, 01:01: PM
Expert Answer
The balanced disproportionation reaction of H3PO2 is,
3H3PO2 → PH3 + 2H3PO3
“n” factor is total change in oxidation state.
Equivalent weight = Molecular weight / n factor
In the change of H3PO2 → H3PO3
The oxidation state of P changes from +1 to +3.
P+1 + 4e− → P+3
So, n = 4
Eq. W = M/4
While in the change of H3PO2 → PH3
The oxidation state of P changes from +1 to -3.
P+1 → P+3 + 2e−
So, n = 2
Eq. W = M/2
Eq. wt. of H3PO2 = (M/4) + (M/2) = 3M/4
Answered by | 08 Jul, 2022, 02:57: PM
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