Question

carbon has four electrons in its valence shell. Which type of compounds can be formed by carbon atom and why? give any one example of such compounds.

Answer 1

it can form only covalent bond.
Sharing of valence electron

Answer 2

Carbon and its compounds form covalent bonds which are formed by sharing of electrons among same or different molecules.

Methane: Carbon has four un-shared electrons in its valence shell. To complete its octet, carbon needs four more electrons. This is donated by four other hydrogen atoms, forming four covalent bonds.