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Select the incorrect statement for a dry...

Select the incorrect statement for a dry cell:

A

` Mn ` is reduced from ` +4 ` to ` +3` state

B

`NH_(3)` gas is liberated out

C

Zn is used as anode

D

`A` pass of `NH_(4)Cl` and `ZnCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
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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