The strength of intermolecular forces between two benzene molecules is approximately equivalent to that between two toluene molecules.
(a) | ΔHmix= zero |
(b) | ΔVmix = Zero |
(c) | They will form a minimum boiling azeotrope |
(d) | They will not form an ideal solution |
Identify the incorrect statements (from a to d given above) regarding a mixture of benzene and toluene:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Relative lowering of vapor pressure is a colligative property because
(a) | It depends on the concentration of a non-electrolyte solute in a solution and does not depend on the nature of the solute molecules |
(b) | It depends on the number of particles of electrolyte solute in a solution and does not depend on the nature of the solute particles |
(c) | It depends on the concentration of a non-electrolyte solute in solution as well as on the nature of the solute molecules |
(d) | It depends on the concentration of an electrolyte or non-electrolyte solute in solution as well as on the nature of solute molecules |
The correct choice among the given is -
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Van't Hoff factor (i) is given by the expression:
a.
b.
c.
d.
The correct choice among the given options are:
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)
Isotonic solutions must have the same-
(a) | Solute |
(b) | Density |
(c) | Elevation in boiling point |
(d) | Depression in freezing point |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Which of the following binary mixtures will have the same composition in the liquid and vapour phase?
(a) | Benzene-toluene |
(b) | Water-nitric acid |
(c) | Water-ethanol |
(d) | n-Hexane-n-heptane |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
The correct choice among the given regarding isotonic solutions is /are -
(a) | Solute and solvent both are same |
(b) | Osmotic pressure is same |
(c) | Solute and solvent may or may not be same |
(d) | Solute is always same solvent may be different |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
For a binary ideal liquid solution, the curve that represents the variation in total vapor pressure versus composition of the solution is:
a. | b. | ||
c. | d. |
The correct option is:
1. | a and b | 2. | b and c |
3. | c and d | 4. | a and d |
Colligative properties are observed when::
(a) | A non-volatile solid is dissolved in a volatile liquid |
(b) | A non-volatile liquid is dissolved in another volatile liquid |
(c) | A gas is dissolved in a non-volatile liquid |
(d) | A volatile liquid is dissolved in another volatile liquid |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Match the laws given in Column I with expressions given in Column II.
Column I | Column II |
A. Raoult’s law | 1. = CRT |
B. Osmotic pressure | 2. |
C. Elevation of boiling point | 3. |
D. Depression in freezing point | 4. |
Codes
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 3 | 1 | 4 | 2 |
Match the terms given in Column I with expressions given in Column II.
Column I | Column II |
A. Mass percentage |
1. \(\text{Number of moles of the solute component} \over \text{Volume of solution in litres}\) |
B. Volume percentage |
2. \(\text{Number of moles of the solute component} \over \text{Mass of solvent in kilograms}\) |
C. Molarity | 3. \({\text{Volume of the solute component in solution} \over \text{Total volume of solution}} \times 100\) |
D. Molality | 4. \({\text{Mass of the solute component in solution} \over \text{Total Mass of solution}} \times 100\) |
Codes
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 3 | 1 | 2 |