Question

Strongest bond is in between

(a) CsF

(b) NaCl

(c) both (a) and (b)

(d) none of the above.

Answer 1

The correct option is: (a) CsF

Explanation:

According to Fajan rules, ionic character increases with increase in size of the cation (Cs > Rb > K > Na) and with decrease in size of the anion (F > Cl > Br > I). Thus, CsF has higher ionic character than NaCl and hence bond in CsF is stronger than in NaCl.