The vapour density of N2O4 at a certain temperature is 30. What is the percentage dissociation of N2O4 at this temperature?
1. 53.3
2. 106.6
3. 26.7
4. none of these
What is the correct sequence of active masses in increasing order in gaseous mixture, containing one gram per litre of each of the following?
I. NH3
II. N2
III. H2
IV. O2
Select the correct answer using the codes given below:
1. III, I, IV, II
2. III, IV, II, I
3. II, I, IV, III
4. IV, II, I, III
Heating a saturated sodium chloride solution leads to:
1. Saturation being maintained
2. The solution becomes unsaturated
3. Solution becoming supersaturated
4. The system reaching an equilibrium point
The graph among the following that represents Henry's Law is -
1.
2.
3.
4.
ln liquid which of the following has maximum solubility?
(1) l2
(2) Br2
(3) NaCl
(4) Cl2
Which of the following represents a metastable system?
1. an unsaturated solution
2. a dilute solution
3. a saturated solution
4. a supersaturated solution
The relative lowering of vapor pressure upon dissolving a non-volatile solute in a solvent is equal to:
1. Mole fraction of the solute
2. Mole fraction of the solvent
3. Concentration of the solute in grams per liter
4. Concentration of the solute in grams per 100 mL
Van't Hoff factor is
(1) More than one in case of association
(2) Less than one in case of dissociation
(3) Equal to
(4) Equal to
Which of the following changes would result in greater solubility of a gas in a liquid?
1. | Increasing temperature |
2. | Increasing the amount of liquid |
3. | Decreasing temperature |
4. | Reducing gas pressure |
Which of the following solution would exhibit abnormal colligative properties?
1. 1 M glucose
2. 0.1 M NaCl
3. 0.1 M sucrose
4. 10 gram glass powder in water