1
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A solution of non volatile solute has boiling point elevation 0.5 K . Calculate molality of solution $\left[\mathrm{K}_{\mathrm{b}}=2.40 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right]$.

A
$0.12 \mathrm{~mol} \mathrm{~kg}^{-1}$
B
$0.16 \mathrm{~mol} \mathrm{~kg}^{-1}$
C
$0.21 \mathrm{~mol} \mathrm{~kg}^{-1}$
D
$\mathrm{0.28 ~mol~ kg}$
2
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the molar mass of solute in a solution prepared by dissolving 1 gram in $0.3 \mathrm{~dm}^3$ solvent having osmotic pressure 0.2 atm at 300 K.

$$\left[\mathrm{R}=0.082 \mathrm{~dm}^3 \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right]$$

A
$442 \mathrm{~g} \mathrm{~mol}^{-1}$
B
$372 \mathrm{~g} \mathrm{~mol}^{-1}$
C
$390 \mathrm{~g} \mathrm{~mol}^{-1}$
D
$410 \mathrm{~g} \mathrm{~mol}^{-1}$
3
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Assuming complete ionisation, arrange the following solutions in order of increasing osmotic pressure.

a) $0.5 \mathrm{~m} \mathrm{~Li}_2 \mathrm{SO}_4$

b) $\mathrm{0.5 ~m~KCl}$

c) $0.5 \mathrm{~m} \mathrm{~Al}_2\left(\mathrm{SO}_4\right)_3$

d) $0.1 \mathrm{~m~BaCl}_2$

A
d < b < a < c
B
b < d < c < a
C
a < d < c < b
D
c < d < b < a
4
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the cryoscopic constant of solvent when 2.5 gram solute is dissolved in 35 gram solvent lowers its freezing point by 3 K. (molar mass of solute is $117 \mathrm{~g} \mathrm{~mol}^{-1}$)

A
$3.11 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$
B
$3.56 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$
C
$ 5.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$
D
$4.91 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$
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