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JIPMER 2006
Exam
JIPMER
Year
2006
Subject
Chemistry
Chapter
Solutions

JIPMER 2006 · Chemistry · Solutions

If for a sucrose solution, elevation in boiling point is 0.1^ C ,...

If for a sucrose solution, elevation in boiling point is 0.1∘C0.1^{\circ} \mathrm{C}, then what will be the boiling point of NaCl solution for same molal concentration?

Options

  1. A0.1∘C0.1^{\circ} \mathrm{C}
  2. B0.2∘C0.2^{\circ} \mathrm{C}
  3. C0.08∘C0.08^{\circ} \mathrm{C}
  4. D0.01∘C0.01^{\circ} \mathrm{C}

Correct answer

B. 0.2∘C0.2^{\circ} \mathrm{C}

Step-by-step solution

Elevation in boiling point is a colligative property as it depends upon the number of particles. ΔTb∝n\Delta T_b \propto n For sucrose, n=1,ΔTb=0.1∘Cn=1, \Delta T_b=0.1^{\circ} \mathrm{C} For NaCl,n=2,ΔTb=0.2∘C\mathrm{NaCl}, n=2, \Delta T_b=0.2^{\circ} \mathrm{C}
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