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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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