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The depression in freeqing point of water observed for the same amount of acetic acid, triCHMoloracetic acid, and trifluoroacetic acid increases in the order given above. Explain briefly. Select the correct answer from above options

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Increasing order of ΔTf( depression in freezing point ) is : Acetic acid < TriCHMloroaceic acid < Trifluoroacetic acid Due to high electronegativity of F atom, it exerts greater -I( inductive effect) . Consequenctly, III is the strongest acid and I is the weakest acid. Hence III ionized to the largest extent and ionizes to the minimum extent to give ions in their solutions in water. ΔTf is directly proportional to the number of ions. Hence, the above order.

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