Question

2 2 Mg O Mg O  the atom whose oxidation number is increased​

Answer 1

Explanation:

An oxidising agent is the one which oxidises other substances (by removal of hydrogen or addition of oxygen) and itself gets reduced (addition of hydrogen or removal of oxygen).

2Mg+O

2

→2MgO

In the above reaction, oxygen acts as an oxidising agent as it oxidises magnesium (Mg) to form magnesium oxide (MgO).