Question

what is tetravalency of carbon

Answer 1

tetravalency and catenation are the unique properties of carbon to form bonds with other atoms..

catenation:- The ability of carbon to form chains of bonds with other carbon atoms !

tetravalency:- The ability of carbon to not only form chains of bonds with carbon atoms but also with other elements such as hydrogen,oxygen etc..

Answer 2

A carbon atom completes its octet only by sharing its valence electrons with other atoms. As a result, a carbon atom forms four covalent bonds by sharing valence electrons with other atoms. This is known as tetravalency of carbon ("tetra" means four).