1
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct statement

A

A hypotonic solution is more concentrated with respect to the other solution separated from it by a semi permeable membrane

B

At the freezing point of a solution containing a non-volatile solute, the vapour pressure of the liquid solvent becomes less than that of the solid solvent

C

In case of dissociation of solute particles in a solution, the van't Hoff factor is more than unity because the observed molar mass has a lesser value

D

The molal boiling point elevation constant for a solvent is directly proportional to its enthalpy of vaporisation

2
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

0.02 M solution of sucrose is isotonic with 0.008 M solution of sodium sulphate. What is the percentage dissociation of the electrolyte?

A

75

B

79

C

85

D

88

3
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the molar masses of two chemically non-reacting gases $\mathrm{A}_2$ and $\mathrm{B}_2$ are 28 amu and 32 amu respectively and 0.8 g of $\mathrm{A}_2$ and 0.4 g of $B_2$ are enclosed in a container with a total pressure of 820 mm of Hg , then the partial pressure of $A_2$ in atmosphere unit is $\_\_\_\_$

A

0.75

B

0.43

C

4.34

D

7.51

4
COMEDK 2026 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The basic character of transition metal monoxides follows the order:

A

$\mathrm{VO}>\mathrm{CrO}>\mathrm{TiO}>\mathrm{FeO}$

B

$\mathrm{FeO}>\mathrm{CrO}>\mathrm{VO}>\mathrm{TiO}$

C

$\mathrm{TiO}>\mathrm{VO}>\mathrm{CrO}>\mathrm{FeO}$

D

$\mathrm{CrO}>\mathrm{TiO}>\mathrm{FeO}>\mathrm{VO}$