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+1 vote
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in Chemical Bonding and Molecular Structure by (75.0k points)
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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

1 Answer

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Best answer

The correct option is : (c) 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.

Thus LiCl < BeCl2 < BCl3 < CCl4 is correct.

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