The freezing point (in \( { }^{\circ} \mathrm{C} \) ) of a solution containing \( 0.1 \mathrm{~g...

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The freezing point (in \( { }^{\circ} \mathrm{C} \) ) of a solution containing \( 0.1 \mathrm{~g} \) of \( \mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] \) (Mol. wt. 329) in \( 100 \mathrm{~g} \) water \( \left(\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right) \) is
(a) \( -2.3 \times 10^{-2} \)
(b) \( -5.7 \times 10^{-2} \)
(c) \( -5.7 \times 10^{-3} \)
(d) \( -1.2 \times 10^{-2} \)
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