1
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.
2
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
3
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
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Abnormal colligative properties are observed only when the dissolved non-volatile solute in a given dilute solution

A
is a non-electrolyte
B
offers an intense colour
C
associates and dissociates
D
offers no colour
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