1.

For the reaction `3Br_(2)+6OH^(ө)-ltBr^(ө)+BrO_(3)^(ө)+3H_(2)O` Equivalent weight of `Br_(2)` (molecular weitht M) isA. `(M)/(2)`B. `(M)/(10)`C. `((M)/(2)+(M)/(10))`D. `((M)/(6))`

Answer» Correct Answer - C
`Br_(2)` disproprtions (simultaneous oxidation and reduction), its equivalent weight is the sum of equivalent weights of the two half reactions.
`2e^(-)+Br_(2)rarr2Br^(ө)(x=2)` (reduction)
`Br_(2)rarr2BrO_(3)^(ө)+10e^(-)(x=10)("oxidation")`
`2x=0, 2x-12= -2`
`2x=10`
`:. Ew=(M)/(2)+(M)/(10)`


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