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JEE Main Chemistry question

ChemistrySolutionsJEE Main

The molecular weight of NaCl determined by studying freezing point depression of its 0.5% aqueous solution was found to be 30. The apparent degree of dissociation of NaCl is

Answer: (D)

Solution

Normal (formula) molar mass of NaCl . The van't Hoff factor \dfrac{normal molar mass}{observed molar mass}$

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Question ID VK-143188