Question

Equivalent weight of h3po2 when it disproportionate into ph3 and h3po3

Answer 1

Answer:

when H3PO2 changes into PH3, oxidation state of phosphorous changes from +1 to -3 so as n-factor is 4. Also when H3PO2 changes into H3PO4, oxidation state of phosphorous changes from +1 to +5 so as n-factor is again 4. Thus the eq weight=M/(4/3)=3M/4 .May 1, 2