Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
Give this quiz to my class
Q 1/20
Score 0
Which of the following units is useful in relating concentration of solution with its vapour pressure?
45
Mass percentage
parts per million
molarity
Mole fraction
Q 2/20
Score 0
Which of the following statements is false?
45
(c) The value of molal depression constant depends on nature of solvent.
(d) Relative lowering of vapour pressure is a dimensionless quantity.
(a) Units of atmospheric pressure and osmotic pressure are the same.
In reverse osmosis, solvent molecules move through a semipermeable membrane from a region of lower concentration of solute to a region of higher concentration.
20 questions
Q.
Which of the following units is useful in relating concentration of solution with its vapour pressure?
1
45 sec
Q.
Which of the following statements is false?
2
45 sec
Q.
Which of the following aqueous solutions will exhibit highest boiling point?
3
45 sec
Q.
Which pair will not form an ideal solution?
4
45 sec
Q.
An unripe mango placed in a concentrated salt solution to prepare pickle, shrivels because
5
45 sec
Q.
The value of Henry’s constant KH is _______.
6
45 sec
Q.
Low concentration of oxygen in the blood and tissues of people living at high altitude is due to _____________.
7
45 sec
Q.
Considering the formation, breaking and strength of hydrogen bond, predict which of the following mixtures will show a positive deviation from Raoult’s law?
8
45 sec
Q.
KH value for Ar(g), CO2(g), HCHO(g) and CH4(g) are 40.39, 1.67, 1.83 x 10 -5 and 0.413 respectively. Arrange these gases in the order of their increasing solubility.
9
45 sec
Q.
Which one of the following pairs of solutions can be expressed to be isotonic at the same temperature?
10
45 sec
Q.
Which mixture that forms maximum boiling azeotropes:
11
45 sec
Q.
On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid?
12
45 sec
Q.
At equilibrium the rate of dissolution of a solid solute in a volatile liquid solvent is ______
13
45 sec
Q.
A beaker contains a solution of substance A. Precipitation of substance A takes place when small amount of A is added to the solution. The solution is _____
14
45 sec
Q.
If two liquids A and B form minimum boiling azeotrope at some specific composition then ______
15
45 sec
Q.
4L of 0.02 M aqueous solution of NaCl was diluted by adding one litre of water. The molarity of the resultant solution is ___
16
45 sec
Q.
Electrolyte A gives 3 ions and B is a non-electrolyte. If 0.1 molar solution of B produces an osmotic pressure p, then 0.05 molar solution of A will produce an osmotic pressure equal to
17
45 sec
Q.
Elevation in the boiling point for 1 molal solution of glucose is 2K. The depression in the freezing point of 2 molal solution of glucose in the same solvent is 2 K. The relation between Kb and Kf is:
18
45 sec
Q.
Dissolving 120g of urea (mol.wt. 60) in 1000g of water gave a density 1.15 g/mL. The molarity of the solution is
19
45 sec
Q.
Density of a 2.05 M solution of acetic acid in water is 1.02 g/ml. The molality of the solution is
