Question

2. Which of the following will be maximum depression in freezing point? ​

Answer 1

Answer:

Since the cryoscopic constant is the same for all compounds, the compound with higher i x C value will have maximum depression in freezing point. The solution having maximum i x C value and that shows maximum depression in freezing point is Al2(SO4)3 . Therefore, the correct answer is option (C).

Answer 2

Answer:

The maximum depression of the freezing point is about −18 °C (0 °F), so if the ambient temperature is lower, NaCl will be ineffective.

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