0.5 molar aqueous solution of a weak acid (HX) is 20% ionised. If `K_(f)` for water is `1.86 K kg mol^(-1)`, the lowering in fre

0.5 molar aqueous solution of a weak acid (HX) is 20% ionised. If `K_(f)` 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. `0.12 k`

0.5 molar aqueous solution of a weak acid (HX) is 20% ionised. If `K_(f)` for water is `1.86 K kg mol^(-1)`, the lowering in freezing point of the sol

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