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0.5 molal aqueous solution of a weak acid (HX) is 20% ionised . If Kf for for water is 1.86 K kg mol-1, the lowering in freezing point of the solution is

(a) 0.56 K

(b) 1.12 K

(c) -0.56 K

(d) -1.12 K

1 Answer

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Best answer

Correct option (b) 1.12 K

Explanation :

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