Question

Reduction is a process in which

Answer 1

Reduction:

1. Reduction is a process in a chemical reaction in which a chemical species acquires electrons and its oxidation number lowers.
2. It is the removal of oxygen from a substance or the addition of hydrogen to it.
3. A substance that undergoes reduction is referred to as an oxidizing agent. It is also called an electron acceptor. The oxidizing agent oxidizes the other reactant while reducing itself.
4. Example: $\underset{\mathrm{Zinc}}{\mathrm{Zn}\left(\mathrm{s}\right)}+\underset{\mathrm{Hydrogen}}{2{\mathrm{H}}^{+}\left(\mathrm{aq}\right)}\to \underset{\mathrm{Zinc}}{{\mathrm{Zn}}^{2+}\left(\mathrm{aq}\right)}+\underset{\mathrm{Hydrogen}}{{\mathrm{H}}_2\left(\mathrm{g}\right)}$Here reduction of hydrogen takes place as its oxidation number changes from $+1$ to $0$

Therefore, Reduction is a process in which a substance loses electrons or its oxidation number decreases.