Question

The increasing tendncy of ionic character is-

• A. NaBr < KCl < LiI < CsF
• B. CsF < KCl < NaBr < LiI
• C. LiI < NaBr < KCl < CsF
• D. LiI < KCl < CsF < NaBr.

Answer 1

The correct option is C

LiI < NaBr < KCl < CsF

Larger cation-smaller anion interaction gives more ionic character whereas smaller cation-larger anion interaction gives more covalent character. Thus the order of increasing ionic character is LiI < NaBr < KCl < CsF.