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Which of the following solutions has the highest boiling point?

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Question: Which of the following solutions has the highest boiling point?

Options:

  1. 0.1 M NaCl
  2. 0.1 M KCl
  3. 0.1 M CaCl2
  4. 0.1 M glucose

Correct Answer: 0.1 M CaCl2

Solution: 

CaCl2 dissociates into 3 ions (Ca^2+ and 2 Cl^-), leading to the highest boiling point elevation among the options.

Which of the following solutions has the highest boiling point?

Practice Questions

Q1
Which of the following solutions has the highest boiling point?
  1. 0.1 M NaCl
  2. 0.1 M KCl
  3. 0.1 M CaCl2
  4. 0.1 M glucose

Questions & Step-by-Step Solutions

Which of the following solutions has the highest boiling point?
Correct Answer: CaCl2
  • Step 1: Understand that boiling point elevation occurs when a solute is added to a solvent.
  • Step 2: Know that different solutes can dissociate into different numbers of ions in solution.
  • Step 3: Identify the solute in the question (CaCl2) and determine how many ions it produces when it dissolves.
  • Step 4: Recognize that CaCl2 dissociates into 3 ions: 1 calcium ion (Ca^2+) and 2 chloride ions (Cl^-).
  • Step 5: Compare this with other solutes (if provided) to see how many ions they produce.
  • Step 6: Conclude that the more ions produced, the higher the boiling point elevation, making CaCl2 the solution with the highest boiling point.
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