Q. The correct sequence of increasing covalent character is represented by :
A) LiCl < NaCl < BeCl₂
B) BeCl₂ < NaCl < LiCl
C) NaCl < LiCl < BeCl₂
D) BeCl₂ < LiCl < NaCl
Explanation
[Solution from source] By Fajans' rules, a smaller, more highly charged cation polarises Cl⁻ more. Polarising power Na⁺ < Li⁺ < Be²⁺, so covalent character NaCl < LiCl < BeCl₂. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.