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Select the incorrect statement for a dry cell:A. ` Mn ` is reduced from ` +4 ` to ` +3` stateB. `NH_(3)` gas is liberated outC. Zn is used as anodeD. `A` pass of `NH_(4)Cl` and `ZnCl_(2)` |
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Answer» Correct Answer - B `NH_(3)` produced due of cathodic reaction. `MnO_(2) +NH_(4)^(+) +e rarr MnO(oM) +NH_(3) ` combines with `Zn^(2+)` to form `Zn(NH_(3))_(4)^(2+)`. |
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