Covalent character of an ionic compound is more when(i)     Polarisation power of cation is more(ii)    Polarisability of anion is more.(iii)   Charge on the anion is less(iv)    Size of cation is lessChoose the correct statements. (i) and (ii) only (i), (ii), (iii), (iv) (i), (ii) and (iv) only (i), (ii) and (iii) only

The correct statements are (i), (ii) and (iv) only.

Explanation:

(i) Polarisation power of cation is more: The greater the polarizing power of the cation, the more it can distort the electron cloud of the anion. This distortion leads to a shift of electron density towards the cation, which increases the covalent character of the bond.

(ii) Polarisability of anion is more: The more easily an anion's electron cloud can be distorted, the more polarizable it is. This increases the covalent character of the bond.

(iii) Charge on the anion is less: This statement is incorrect. The greater the charge on the anion, the more it will be polarized, and the greater the covalent character of the bond.

(iv) Size of cation is less: Smaller cations have a higher charge density, which increases their polarizing power. This in turn increases the covalent character of the bond.