At $100^{\circ}\mathrm{C}$ the vapour pressure of a solution of $6.5\,\mathrm{g}$ of a solute in $100\,\mathrm{g}$ water is $732\,\mathrm{mm}$. If $K_{b}=0.52$, the boiling point of this solution will be
- A$103^{\circ}\mathrm{C}$
- B$101^{\circ}\mathrm{C}$
- C$100^{\circ}\mathrm{C}$
- D$102^{\circ}\mathrm{C}$
✓ Correct answer: B
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