Question

What is light water and heavy water?

Answer 1

1. We know that Hydrogen has three isotopes, protium ${}_1{}^1\mathrm{H}$, deuterium(D or ${}_1{}^2\mathrm{H}$), and tritium(T or ${}_1{}^3\mathrm{H}$)
2. Light water is normal ${\mathrm{H}}_2\mathrm{O}$ which we use in our daily life which contains protium isotope.
3. Heavy water is ${\mathrm{D}}_2\mathrm{O}$ or ${}_1{}^2\mathrm{H}_2\mathrm{O}$
4. It is obtained by exhaustive electrolysis of water or a byproduct of the fertilizer industry.
5. It is used in nuclear reactors.