1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which of the following liquid pairs shows a positive deviation from Raoult’s law?
A
Water – hydrochloric acid
B
Acetone – chloroform
C
Water – nitric acid
D
Benzene – methanol
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which one of the following aqueous solutions will exhibit highest boiling point?
A
0.01 M Na2SO4
B
0.015 M glucose
C
0.015 M urea
D
0.01 M KNO3
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is false?
A
Raoult’s law states that the vapour pressure of a components over a solution is proportional to its mole fraction
B
Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression
C
The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is BaCl2 > KCl > CH3COOH > sucrose
D
The osmotic pressure ($$\pi$$) = MRT, where M is the molarity of the solution
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
A pressure cooker reduces cooking time for food because
A
boiling point of water involved in cooking is increased
B
the higher pressure inside the cooker crushes the food material
C
cooking involves chemical changes helped by a rise in temperature
D
heat is more evenly distributed in the cooking space
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