Question

diamond has a high melting point give reason

Answer 1

We need lots of energy to separate the atoms of a diamond this is because covalent bonds are strong and diamonds contains many covalent bonds this is the reason why diamond has a high melting and high boiling point.

Answer 2

Diamond contains many covalent bonds.

Covalent bonds are strong and need thermal energy to break. Each carbon atoms are covalently bonded with other four carbon atoms.

A lot of energy is needed to separate this. For this reason, the diamond requires high melting and boiling point.

This helps to break the diamonds parts.