Among the halides(1) BCl3 (2) AlCl3(3) GaCl3 (4) InCl3The order of decreasing Lewis acid character is

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1, 2, 3, 4

2, 3, 4, 1

3, 4, 2, 1

4, 3, 2, 1

answer is A.

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Detailed Solution

The acidic character of chlorides decreases with the increase in the size down the group .

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