Question

Among $LiCl$, $BeC{l}_2$, $BC{l}_3$ and $CC{l}_4$ the covalent charecter varies as:

• A. $LiCl<BeC{l}_2>BC{l}_3>CC{l}_4$
• B. $LiCl>BeC{l}_2<BC{l}_3<CC{l}_4$
• C. $LiCl<BeC{l}_2<BC{l}_3<CC{l}_4$
• D. $LiCl>BeC{l}_2>BC{l}_3>CC{l}_4$

Answer 1

The correct option is C $LiCl<BeC{l}_2<BC{l}_3<CC{l}_4$

According to fajan's rule,more the charge on cation,more would be polarizing power and more would be the covalent character.

$L{i}^{+},B{e}^{2+},B^{3+},C^{4+}$

$LiCl<BeC{l}_2<BC{l}_3<CC{l}_4$

Hence, option $C$ is the correct answer.