(b) Explain why, diamond is hard while graphite is soft.

Solution:

(a) By joining atoms to atoms, carbon may create lengthy chains. The most distinctive feature of a carbon atom is catenation. As a result, a huge quantity of carbon or organic compounds are produced.

(b) Carbon is found in diamond and graphite. Graphite is soft while diamond is hard because carbon forms a tetrahedron with a strong covalent connection that is difficult to break. Graphite is a layer of carbon atoms formed by a flat hexagonal ring.