For a cell reaction,
`Zn+ Cu^(2+)(aq) to Zn^(2+)(aq)+ Cu`
Cell representation is

Options

A. `Cu^(2+)| Cu || Zn |Zn^(2+)`
B. `Cu^(2+)| Cu || Zn^(2+) |Zn`
C. `Zn|Zn^(2+) || Cu^(2+)| Cu `
D. `Cu^(2+)|Zn || Zn^(2+)| Cu`

Answer

C

Explanation

Cell representation is done as follows
Anode | Anodic electrolyte || cathodic electrolyte | cathode
(i) Oxidation is loss of electron and it takes place at anode. Reduction is gain of electron and it takes place at cathode.
`:.` For cell reaction,
`Zn + Cu^(2+) (aq) to Zn^(2+) (aq) + Cu`
Zn is anode and Cu is cathode.
`:.` Cell representation is
`Zn|Zn^(2+) || Cu^(2+)| Cu `