Question

why do ionic compounds have high melting point...​

Answer 1

In ionic compound there is electrostatic force between two opposite charged ions and in a lattice there is a lot of ions so the melting point is high.

Answer 2

Explanation:

The compounds that are formed by losing and gaining of electrons between atoms are called as ionic compounds.

During the formation of ionic compounds, the atoms become ions (+ve or -ve) and a strong force of attraction is created between the ions.

When any ionic compound is heated then the heat energy is used to breakdown the intermolecular force of attraction between ions and as the force is very strong so it needs high temperature and heat to break the bonds.

Hence, they have high melting point.