. the covalent bond character follows the order


Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character follows the order

(a) BeCl2 > BCl3 > CCl4 < LiCl

(B) BeCl2 < BCl3 < CCl4 < LiCl

(c) LiCl < BeCl2 < BCl3 < CCl4

(d) LiCl > BeCl2 > BCl3 > CCl4

Best Answer

Correct Option is: C

As we move along the period,from Li → Be → B → C, the size of atoms decreases

FAJAN's RULE: small cation and big anion increases covalent character

Hence by Fajan's rule smaller the cation more is the covalent character and the anion is same for all the compounds so accordingly, the covalent character increases. Thus LiCl < BeCl2 < BCl3 < CCl4 is the correct order of covalent bond character.

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