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Cell reaction for the cell Zn|Zn^(2+)(...

Cell reaction for the cell
`Zn|Zn^(2+)(1.0M)||Cd^(2+)(1.0M)|Cd` is given by

A

`CdrarrCd^(2+)+2e^(-)`

B

`Zn^(2+)rarrZn-2e^(-)`

C

`Cd+Zn^(2+)rarrZn+Cd^(2+)`

D

`Zn+Cd^(2+)rarrZn^(2+)+Cd`.

Text Solution

Verified by Experts

The correct Answer is:
D
The two half cell reaction for the given cells are:
`Zn(s)rarrZn^(2+)+(aq)+2e^(-)`
`Cd^(2+)(aq)+2e^(-)rarrCd(s)`
New reaction:
`Zn(s)+Cd^(2+)(aq)rarrZn^(2+)(aq)+Cd(s)`
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