Question

Make a comparison of atomic hydrogen with nascent hydrogen. How are active hydrogen and heavy hydrogen formed?

Answer 1

Hydrogen is an element with atomic number $1$ and is the lightest element in the non-metals. Hydrogen can exist in two different forms namely nascent hydrogen, and atomic hydrogen. Active hydrogen is the hydride ion and heavy hydrogen is the deuterium which is one of the isotopes of hydrogen.

Complete Step By Step Answer:
Atomic hydrogen can be represented by the formula of ${H_2}$ and nascent hydrogen is the single hydrogen atom.
Atomic hydrogen can be produced at high temperatures whereas nascent hydrogen produces even at room temperature. Atomic hydrogen can be isolated, but nascent hydrogen cannot be isolated. There is a difference in the reducing power of atomic and nascent hydrogen. As atomic hydrogen has more reducing power than nascent hydrogen.
Active hydrogen is atomic hydrogen only, it exists as a single atom. It bonds with the more electronegative atoms, makes it more polar, and is very reactive.
Due to its more reactivity, it can be called atomic hydrogen.
Heavy hydrogen is obtained by the electrolysis of heavy water containing a strong base or strong acid. The chemical reaction involved is as follows in which the heavy hydrogen liberates at the cathode.
$3{D_2}O\xrightarrow{{electrolysis}}3{D_2} + {O_2}$

Note:
Hydrogen has three isotopes namely proton, deuterium, and tritium. As deuterium has a greater number of neutrons, it is heavier than protons. Thus, it is known as heavy water represented by ${D_2}$ , where D stands for deuterium.