STANDARD Chemistry Colligative Properties MCQ Question
A 5% solution of cane sugar (Mol. wt. = 342) is isotonic with 1% solution of substance X. The molecular weight of X is
171.2
68.4
34.2
136.2
Correct Answer
Detailed Explanation
Since the solutions are isotonic, their molar concentrations are equal. Solving 5/342 = 1/x gives x = 68.4.
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