Q. No.Match the items given in Column I with the type of solutions given in Column II.
| Column I | Column II |
| A. Soda water | 1. A solution of gas in solid |
| B. Sugar solution | 2. A solution of gas in liquid |
| C. German silver | 3. A solution of solid in liquid |
| D. Hydrogen gas in palladium | 4. A solution of solid in solid |
Codes:
| A | B | C | D | |
| 1. | 2 | 1 | 4 | 3 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 2 | 3 | 4 | 1 |
| 4. | 4 | 1 | 3 | 2 |
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 |
A 500 g toothpaste sample has 0.4 g fluoride concentration. The fluoride concentration in terms of ppm will be -
| 1. | 200 ppm | 2. | 400 ppm |
| 3. | 500 ppm | 4. | 800 ppm |
Amount of oxalic acid in grams that is required to obtain 250 ml of a semi-molar solution is -
| 1. | 17.75 g | 2. | 17.00 g |
| 3. | 15.75 g | 4. | 15.00 g |
The temperature dependent term among the following is -
| 1. | Molality | 2. | Molarity |
| 3. | Mole fraction | 4. | Weight percentage |
The density of H2SO4 solution is 1.84 g ml–1. In a 1 litre solution if H2SO4 is 93 % by (w/v) then the molality of the solution is -
| 1. | 9.42 m | 2. | 10.42 m |
| 3. | 11.42 m | 4. | 12.42 m |
If 22 g of benzene is dissolved in 122 g of CCl4, the mass percentage of CCl4 and benzene respectively are-
1.
2.
3.
4. 91.28 %, 8.72 %
To make 2.5 kg of 0.25 m aqueous solution, the mass of urea required is-
| 1. | 73 g | 2. | 37 g |
| 3. | 48 g | 4. | 24 g |
The maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon:
| 1. | Temperature | 2. | Nature of solute |
| 3. | Pressure | 4. | Nature of solvent |
The unit that relates concentration of solution with its vapour pressure is:
1. Mole fraction.
2. Parts per million.
3. Mass percentage.
4. Molality.
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