Which of the following solutions has the highest freezing point? (2020)
Practice Questions
Q1
Which of the following solutions has the highest freezing point? (2020)
0.1 M NaCl
0.1 M KCl
0.1 M glucose
0.1 M CaCl2
Questions & Step-by-Step Solutions
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.
