Why are ionic bonds stronger than covalent bonds \[?\]

Hint: First we have to know that the chemical bonds are attractive electrostatic forces that hold atoms together to make compounds or molecules. A bond between two atoms depends upon the electronegativity difference between the atoms. The main four types of chemical bonds are Ionic bonds, Covalent bonds, Hydrogen bonds, and van der Waals interactions which are essential for life.

Complete answer:
The chemical bond formed by sharing of two valence electrons between the two atoms (non-metal) is called covalent bond. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds.

An ionic bond is the electrostatic force that holds ions together in an ionic compound. A larger ion makes a weaker ionic bond because of the greater distance between its electrons and the nucleus of the oppositely charged ion.
Ionic bond involves complete transfer of electrons because of which there is formation of cation and anion and there exist huge electrostatic forces of attraction. Covalent bond is not as strong as ionic bond. Covalent bond is formed by the sharing of electrons between the elements to become stable and to form compounds.
Hence ionic bonds are stronger than covalent bonds.

Note:
Note that some bonds are broken in the reactants in order to form bonds in the products in a chemical reaction. Since breaking bonds requires energy and forming bonds releases energy. Then the net energy of a chemical reaction will depend on the sum of energy absorbed and generated.