Question:medium
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: Feb 24, 2026
- 1% KCl
- 1% glucose
- 1% urea
- 1% CaCl$_2$
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The Correct Option is D
Solution and Explanation
The elevation of the boiling point, a colligative property, is contingent upon the quantity of particles (ions/molecules) present in a solution. CaCl$_2$ dissociates into three ions (Ca$^{2+}$ + 2Cl$^-$), thus introducing more particles than KCl (which yields two ions), and glucose and urea (both non-electrolytes, yielding one particle). Consequently, a CaCl$_2$ solution exhibits the highest boiling point.
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