Question

Least ionic compound among the following is:

• A. $NaCl$
• B. $KCl$
• C. $CsI$
• D. $LiI$

Answer 1

The correct option is D $LiI$

Smaller the size of cation, more is the polarising power of cation. Larger the size of the anion, more is its polarisability. Hence, lesser is the ionic character, more is the covalent character.