Question:
Which of the following solutions will have the highest boiling point in water?
Which of the following solutions will have the highest boiling point in water?
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More the number of particles (van't Hoff factor), greater the boiling point elevation due to increased colligative effect.
Updated On: Jul 1, 2025
- 1% KCl
- 1% glucose
- 1% urea
- 1% CaCl$_2$
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The Correct Option is D
Solution and Explanation
Boiling point elevation is a colligative property and depends on the number of particles (ions/molecules) in solution. CaCl$_2$ dissociates into 3 ions (Ca$^{2+}$ + 2Cl$^-$), contributing more particles than KCl (2 ions), glucose and urea (both non-electrolytes, 1 particle). Therefore, CaCl$_2$ solution has the highest boiling point.
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