Question

Among licl becl2 bcl3 and ccl4 the covalent bond character varies as

Answer 1

Answer:

LiCl < BeCl₂ < BCl₃ < CCl₄

Explanation:

Along the period, electronegativity (EN) increases and hence as we move from Li → Be → B → C, the electronegativity increases and hence the EN difference between the element and Cl decreases and accordingly the covalent character increases.

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Answer 2

Answer:

CCl4>BCl3>BeCl2>LiCl

Explanation:

covalent character directly proportional to polaraising power

polarising power = charge/size

charge on C= +4 ,B=+3,Be=+2,Li=+1