Select the correct option based on statements below:
Assertion (A): | When methyl alcohol is added to water, boiling point of water increases. |
Reason (R): | When a volatile solute is added to a volatile solvent, elevation in boiling point is observed. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Select the correct option based on statements below:
Assertion (A): | When NaCl is added to water a depression in freezing point is observed. |
Reason (R): | The lowering of vapour pressure of a solution causes depression in the freezing point. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Given below are two statements:
Assertion (A): | When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side. |
Reason (R): | Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Select the correct option based on statements below:
Assertion (A): | Molarity of a solution in liquid state changes with temperature. |
Reason (R): | The volume of a solution changes with change in temperature. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Match the terms given in Column I with expressions given in Column II.
Column I (Term) | Column II (Expression) |
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 |
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 |
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)
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
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)
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) |