Question

what is the difference between calcination and tetravalency

Answer 1

In chemistry, tetravalence is the state of an atom with four valence electrons available for covalent chemical bonding in its outermost electron shell, giving the atom a chemical valence of four. An example is methane (CH4): the tetravalent carbon atom forms a covalent bond with four hydrogen atoms.Authorities differ on the meaning of calcination (also referred to as calcining). The IUPAC defines it as 'heating to high temperatures in air or oxygen..

Answer 2

Calccination means self linking , making bonds with its own atoms
Tetravalency means having four valency