Question

Choose the correct statement:

(1) Diamond is covalent and graphite is ionic.

(2) Diamond is sp³ hybridised and graphite is sp² hybridized.

(3) Both diamond and graphite are used as dry lubricants.

(4) Diamond and graphite have two dimensional network.

Answer 1

(2) Diamond is sp³ hybridised and graphite is sp² hybridized.

In diamond each carbon is bonded with four other carbon atoms. So hybridisation of carbon atom is sp³.

In graphite each carbon is bonded with three other carbon atoms. So hybridisation of carbon atom is sp².