MCQ
Which of the following solution will exhibit highest boiling point
  • A
    $0.01\,M\,Na_2SO_4$
  • $0.01\,M\,KNO_3$
  • C
    $0.015\,M$ urea
  • D
    $0.015\,M$ glucose

Answer

Correct option: B.
$0.01\,M\,KNO_3$
b
$\pi=\mathrm{CRTi} \quad \mathrm{pH}=2$

$\mathrm{H}^{+}=10^{-2}=\mathrm{C} \alpha(\text { mono-basic acid })$

${\alpha=\frac{10^{-2}}{0.1}=0.1} $

${\mathrm{i}=1+\alpha(\mathrm{N}-1)}$

${\mathrm{i}=1+0.1(2-1)}$

${\mathrm{i}=1.1}$

${\pi=0.1 \times \mathrm{RT} \times 1.1} $

${\pi=0.11\,\, \mathrm{RT}}$

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