Which of the following solutions has the highest freezing point? (2020)

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Question: Which of the following solutions has the highest freezing point? (2020)

Options:

Correct Answer: 0.1 M glucose

Exam Year: 2020

Solution:

0.1 M glucose is a non-electrolyte and does not dissociate, thus it has the highest freezing point compared to the ionic solutions.

Which of the following solutions has the highest freezing point? (2020)

Which of the following solutions has the highest freezing point? (2020)

Step 1: Understand that freezing point depression occurs when a solute is added to a solvent, lowering its freezing point.
Step 2: Identify the types of solutes in the solutions provided. Glucose is a non-electrolyte, meaning it does not break into smaller particles in solution.
Step 3: Recognize that ionic solutions dissociate into ions when dissolved, which increases the number of particles in the solution.
Step 4: Compare the number of particles in each solution. A 0.1 M glucose solution has 0.1 moles of glucose, while ionic solutions will have more particles due to dissociation.
Step 5: Conclude that since glucose does not dissociate, it has fewer particles compared to ionic solutions, leading to a higher freezing point.

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