If boiling point of an aqueous solution is \( 100.1^{\circ} \mathrm{C} \), what is its freezing ...

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If boiling point of an aqueous solution is \( 100.1^{\circ} \mathrm{C} \), what is its freezing point? Given, enthalpy of fusion and vaporisation of water are \( 80 \mathrm{cal} \mathrm{g}^{-1} \) and \( 540 \mathrm{cal} \mathrm{g}^{-1} \) respectively:
(a) \( 0.361^{\circ} \mathrm{C} \)
(b) \( -0.361^{\circ} \mathrm{C} \)
(c) \( -3.61^{\circ} \mathrm{C} \)
(d) None of these
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