HA(aq) H+(aq) + A–(aq) The freezing point depression of a 0.1 m aqueous solution of a monobasic is w — JEE Mains Chemistry Past Papers Chemistry Question

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HA(aq) H+(aq) + A–(aq) The freezing point depression of a 0.1 m aqueous solution of a monobasic is weak acid HA is 0.20 ºC. The dissociation constant for the acid is: [Given: Kf(H2O) = 1.8 K kg mol–1, molarity molarity] (A) 1.1 × 10–2 (B) 1.38 × 10–3 (C) 1.90 × 10–3 (D) 1.89 × 10–1