Solutions Question 91

Question: If for a sucrose solution elevation in boiling point is 0.1°C then what will be the boiling point of NaCl solution for same molal concentration [BHU 1998, 2005]

Options:

A) $ 0.1{}^\circ C $

B) $ 0.2{}^\circ C $

C) $ 0.08{}^\circ C $

D) $ 0.01{}^\circ C $

Show Answer

Answer:

Correct Answer: B

Solution:

Elevation in a boiling point is a colligative property as it depends upon the number of particles. -Tb µ n For sucrose, n = 1, -Tb = 0.1°C For NaCl, n = 2, -Tb = 0.2°C



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