Explain the following with suitable examples:

12-16 and 13-15 group compounds.

Compounds belong to 12 – 16 group are formed by combination of elements of 12 and 16 groups. For example – ZnS, Cds, etc.

Compounds belong to 13 – 15 groups are formed by the combination of the elements of 13 and 15groups, for example, InSb, GaAs, etc.

Bonds in these compounds are not perfectly covalent. The ionic bonds in these compounds depend s on the electronegativity of the two elements.