Answer:

redox reaction means oxidation and reduction take place in one equation

Answer:

The reaction in which oxidation and reduction of substance takes place simultaneously is known as redox reaction.

Example:-

CuO + H2 ---> Cu + H2O

In this reaction CuO is reduced to Cu and H2 is oxidised to H2O.

In this reaction oxidation and reduction takes place simultaneously.

Therefore, this is a redox reaction.