Question

define oxidation and reduction in simple word full expalin?

Answer 1

The addition of oxygen or removal of hydrogen is called oxidation

The removal of oxygen or addition of hydrogen is called reduction

CuO+H2–> Cu+H2O

Here
H2 is oxidised
CuO is reduced


Hope it helps:)

Answer 2

The gain of oxygen and loss of hydrogen, is oxidation. and the gain of hydrogen and loss of oxygen is reduction