question_answer

For cell reaction, \[Zn+C{{u}^{2+}}\to Z{{n}^{2+}}+Cu,\] cell representation is                                     cell cell                                                [BCECE 2005]

A)                 Zn | Zn2+||Cu2+|Cu        

B)                 Cu | Cu2+ ||Zn2+| Zn

C)                 Cu | Zn2+ || Zn | Cu2+       

D)                 Cu2+ | Zn || Zn2+ | Cu

Correct Answer: A

Solution :

           Electrode on which oxidation occurs is written on\[L.H.S.\]and the other on the \[R.H.S.\]as represented by                    \[Zn|Z{{n}^{2+}}||C{{u}^{2+}}|Cu\].