Question

Lithium halides are covalent. This is because of
(A) High hydration
enthalpy of Li ion
(B) High polarisation
capability of Li ion
(D) All of these
(C) Large size of Li+ ion
when compared to
other elements in the
same group​

Answer 1

Answer:

Lithium halides are covalent in nature,because Li

+

ion due to its smaller size than other alkali metalcations exerts stronger polarizing power towards an ion and therefore develops covalent character in the molecule (Fajan's rule).

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion