Question

Write any four chemical equation to show that oxidation and reduction reaction takes place simultaneously

Answer 1

Hi,

Oxidation refers to losing of electrons while reduction refers to the gaining of electrons. The reactions in which oxidation and reduction takes place simultaneously are referred to redox reaction. For e.g.

CuO + H2 → Cu + H2O

Here copper oxide is reduced and thus acts as oxidizing agent.H2 is oxidized and acts as reducing agent.

There are reactions in which oxidation and reduction of same compound results. Such reactions are called disproportionation reaction. For e.g. on heating potassium chlorate we get

2KClO3 → 2KCl + 3O2

The other example is

2H2O2 → 2H2O + O2

Hope it helps.

Cheers!