Question

The correct order of covalent bond character of \( BCl_3, CCl_4, BeCl_2, LiCl \) is:

• A. \( LiCl<BeCl_2<BCl_3<CCl_4 \)
• B. \( CCl_4<BeCl_2<BCl_3<LiCl \)
• C. \( CCl_4<BCl_3<BeCl_2<LiCl \)
• D. \( LiCl<BCl_3<BeCl_2<CCl_4 \)

Hint:

Smaller cations and larger anions increase covalent character due to higher polarization.

Answer 1

The Correct Option is A

Step 1: Apply Fajan’s Rule Covalent character increases with: - Higher cation charge density. - Larger anion size. Step 2: Arrange Based on Covalent Character \[ LiCl<BeCl_2<BCl_3<CCl_4 \]