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题目材料：
Notes:Drawn to scale. Each solution referred to consists of water and only one of the compounds.
Percent concentration means percent of compound per unit of volume of solution. Assume that the
volume of the solution is equal to the sum of the volume of the water and the volume of the compound added to the water.
Which of the following can be inferred from the graph?
Ⅰ. A solution with a 20 percent concentration ofliquid X has a lower freezing point than a solution with any concentration of another of the three antifreezes.
Ⅱ. If four different solutions, each containing a 30 percent concentration of one of the four compounds, are compared, the solution containing liquid X has the lowest freezing point.
Ⅲ. A solution with a 50 percent concentration of methanol has a lower freezing point than a solution with a 60 percent concentation of ethanol.
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AⅠ only
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BⅡ only
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CⅢ only
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DⅠandⅡ
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EⅡ and Ⅲ
E显示答案
