Question

If electon is gain or electron will oxidized what will happen?

Answer 1

If an electron is formally lost, another species will formally gain an electron....

Explanation:

And thus a redox equation has occurred, which are conceived to proceed on the back of electron loss, `"oxidation"`, and electron gain, `"reduction"`...

And just to provide an example, we use oxidation numbers to assess the gain or loss of electrons... Metallic zinc COULD reduce nitrate anion to give ammonia...

`"Oxidation half equation:"`

`Zn(s) rarr Zn^(2+) + 2e^(-)` `(i)`

`"Reduction half equation:"`

`stackrel(V^+)NO_3^(-) +9H^+ + 8e^(-) rarr stackrel(""^(-)III)NH_3(aq)+3H_2O(l)` `(ii)`

And we take `4xx(i)+(ii)....`

`4Zn(s) +NO_3^(-) +9H^+ rarr 4Zn^(2+) +NH_3(aq)+3H_2O(l)`

...which I think is balanced with respect to mass and charge, as indeed it must be if we represent an actual chemical reaction...