Question

Can chromium be obtained by electrolysis?

Answer 1

Electrolysis:

1. Electrolysis is a process in which components of a solution are separated by passing a direct current through it.
2. If a metal has a higher reduction potential than water then only the metal ion gets reduced to form metal.
3. Now, the standard reduction potential of water is $-0.83V$ and that of chromium is $+1.33V$.
4. It can be observed that the reduction potential of chromium is more than that of water.
5. Hence, chromium can be obtained by electrolysis.