Question

20. E' values of Mg+2|Mg, Zn+2|Zn and Fe+2|Fe are
-2.37 V, -0.76 V and -0.44 V respectively. Which
of the following is correct ?
(1) Mg oxidises Fe (2) Zn oxidises Fe
(3) Zn reduces Mg+2 (4) Zn reduces Fe+2​

Answer 1

Option: (4) Zn reduces Fe+2​

Explanation:

1. Electrochemical series has valuces arranged in serial order.
2. More positive vale having element is easily reduced.
3. More negative value is easily oxidised.
4. Thus, option 4 is correct.