1.

For the following balanced redox reaction: 2MnO_(4)^(ɵ)+8H^(o+)+Br_(2)to2Mn^(2+)+2BrO_(3)^(ɵ)+2H_(2)O if the molecular weight of MnO_(4)^(ɵ):Br_(2) and Br_(2) be M_(1)M_(2) respectively, then

Answer»

equivalent weight of `MnO_(4)^(ɵ)` is `(M_(1))/(5)`
EQUIVALENTS weight of `Br_(2)` is `(M_(2))/(10)`
The n-factor ratio of `MnO_(4)^(ɵ):Br_(2)is1:1`
none of these

Solution :(i). `5E^(-)+MnO_(4)^(ɵ)toMn^(2+)`
(ii). `Br_(2)to2BrO_(3)^(ɵ)+10e^(-)`
(iii). `2MnO_(4)^(ɵ)+Br_(2)+8H^(o+)to2Mn^(2+)+2BrO_(3)^(ɵ)+2H_(2)O`
`Ew(MnO_(4)^(ɵ))=(M_(1))/(5)(n=5)`
`Ew(Br_(2))=(M_(2))/(10)(n=6)`
(c). N-factor ratio `((MnO_(4)^(ɵ))/(Br_(2))=(5)/(6)`


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