1
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The boiling point of a $$4 \%$$ aqueous solution of a non-volatile solute $$\mathrm{P}$$ is equal to the boiling point of $$\mathrm{X} \%$$ solution of another non-volatile solute $$\mathrm{Q}$$. The relation between their Molar masses is $$\mathrm{M}_{\mathrm{Q}}=4 \mathrm{~Mp}$$. What is $$\mathrm{X}$$ ?

A
8.01
B
14.29
C
15.39
D
16.01
2
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is incorrect regarding Henry's law?

A
Gas reacts with solvent chemically.
B
Pressure and concentrations are not too high.
C
Temperature is not too low.
D
Gas does not change its molecular state in solution i.e., neither dissociates nor associates.
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following shows negative deviation from Raoult's law?

A
Benzene-acetone
B
Benzene-chloroform
C
Benzene-ethanol
D
Benzene-carbon tetrachloride
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$5 \mathrm{~g}$$ of non-volatile water soluble compound $$X$$ is dissolved in $$100 \mathrm{~g}$$ of water. The elevation in boiling point is found to be 0.25. The molecular mass of compound $$X$$ is

A
35 g
B
40 g
C
20 g
D
60 g
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