SSC MTS EXAM

Detailed explanation-1: -Dihydrogen is an elemental molecule consisting of two hydrogens joined by a single bond. It has a role as an antioxidant, an electron donor, a fuel, a human metabolite and a member of food packaging gas. It is an elemental hydrogen, a gas molecular entity and an elemental molecule.

Detailed explanation-2: -Molecular hydrogen, sometimes called dihydrogen, is a diatomic molecule that is composed of two hydrogen atoms held together by a covalent bond with the chemical formula H2.

Detailed explanation-3: -H2 is a molecule of hydrogen whereas 2H is two atoms of hydrogen. H2 is molecular hydrogen.it is a molecule of hydrogen that consists of two hydrogen atoms bonded together by one single bond. 2H denotes two moles of elemental hydrogen.it should be noted that elemental hydrogen is not bonded to anything.