Question

explain the following in terms of Gain or loss of electrons with two example each:- (a) oxidation (b) reduction (3 marks)

Answer 1

Oxidation when if a substance gain oxygen during a reaction.
and reduction when if a substance loss oxygen during a reaction.
Also give a example

CuO +H2=Cu+H2O
here CuO and Cu = reduction

H2 and h2o =oxidation