Which of the following statements are correct.
i) NaCl is more ionic than KCl
ii) ZnCl2 is less ionic than CaCl2
iii) CaF2 is an ionic compound where as CaI2 is a covalent compound.
both i and ii
both ii and iii
both i and iii
only iii
Ionic nature increases down the group from NaCl to KCl