during the process of electrolysis, we come across reduction.
for ex, Fe+2e=Fe2-
this is reduction but if we alter the position of electrons, it becomes oxidation
ex, Fe=Fe2- - 2e
how can one explain this?

Asked by sankar.goswami | 14th Jan, 2016, 10:53: PM

Expert Answer:

Reduction means gain of electrons and oxidation means loss of electrons.
When Fe gains electrons to form Fe2-, it is called as reduction.
Similarly, when Fe loses electrons to form Fe2+, it is called oxidation.
Hence Fe + 2e → Fe2- is a reduction reaction.
and Fe →  Fe2+ + 2e is oxidation reaction.

Answered by Prachi Sawant | 16th Jan, 2016, 01:49: PM