Question

addition of h2 and elimination o2 is called​

Answer 1

Addition of h2 and elimination of O2 is known as reduction.

Hope this is helpful! ❤

Answer 2

The process of addition of hydrogen and the elimination of oxygen is known as reduction.

In the process of reduction, electrons are gained. It is also termed as half-reaction.

We may say, it is the reverse process of oxidation too where electrons or oxygen are lost.

These types of reactions are known as the redox reactions signifying reduction and oxidation.