Elevation in the boiling point for 1 molal solution

Question:

Elevation in the boiling point for 1 molal solution of glucose is $2 \mathrm{~K}$. The depression in the freezing point of 2 molal solutions of glucose in the same solvent is $2 \mathrm{~K}$. The relation between $\mathrm{K}_{\mathrm{b}}$ and $\mathrm{K}_{\mathrm{f}}$ is:

  1. $\mathrm{K}_{\mathrm{b}}=0.5 \mathrm{~K}_{\mathrm{f}}$

  2. $\mathrm{K}_{\mathrm{b}}=2 \mathrm{~K}_{\mathrm{f}}$

  3. $\mathrm{K}_{\mathrm{b}}=1.5 \mathrm{~K}_{\mathrm{f}}$

  4. $\mathrm{K}_{\mathrm{b}}=\mathrm{K}_{\mathrm{f}}$


Correct Option: , 2

Solution:

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