The correct order of the increasing covalent character of the following is:

S i C l_{4} < A l C l_{3} < C a C l_{3} < K C l

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K C l < C a C l_{2} < A l C l_{3} < S i C l_{4}

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A l C l_{3} < C a C l_{2} < K C l < S i C l_{4}

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none of these

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Solution

The correct option is D $K C l < C a C l_{2} < A l C l_{3} < S i C l_{4}$
The correct order of the increasing covalent character is $K C l < C a C l_{2} < A l C l_{3} < S i C l_{4}$ .
As the electronegativity of the central atom increases, the attraction of the bond pair of electrons increases.
Hence, the covalent character increases.

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Correct order of increasing covalent character is:

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