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1
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

The solution which have lowest freezing point is

A
0.2 M K$$_2$$SO$$_4$$
B
0.2 M KCl
C
0.2 M NaNO$$_3$$
D
0.2 M MgSO$$_4$$
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Under which of the following condition, the gases does not follow Henry's law?

A
When gases are placed under high temperature.
B
When the molecules of the system are in equilibrium state.
C
When gases are placed under extremely high pressure.
D
All of the above.
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following is correct mixture of azeotrope?

A
Chlorobenzene + bromobenzene
B
C$$_2$$H$$_5$$Br + C$$_2$$H$$_5$$Cl
C
C$$_6$$H$$_{14}$$ + C$$_7$$H$$_{16}$$
D
CCl$$_4$$ + CHCl$$_3$$
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following is correct order of their increasing boiling points?

A
10$$^{-4}$$ M NaCl > 10$$^{-3}$$ M MgCl$$_2$$ > 10$$^{-2}$$ M NaCl > 10$$^{-4}$$ M urea.
B
10$$^{-2}$$ M NaCl > 10$$^{-3}$$ M MgCl$$_2$$ > 10$$^{-4}$$ M NaCl > 10$$^{-4}$$ M urea.
C
10$$^{-4}$$ M urea > 10$$^{-4}$$ M NaCl > 10$$^{-3}$$ M MgCl$$_2$$ > 10$$^{-2}$$ M NaCl >
D
10$$^{-2}$$ M NaCl > 10$$^{-3}$$ M MgCl$$_2$$ > 10$$^{-4}$$ M NaCl > 10$$^{-4}$$ M urea.
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