| 1 |
18 g glucose is dissolved in 90 g of water. The relative lowering of vapour pressure is equal to. |
- A. 1/5
- B. 5.1
- C. 1/51
- D. 6
|
| 2 |
Molal boiling point elevation depends upon |
- A. Nature of solvent
- B. Natrue of solute
- C. Vapour pressure of solution
- D. None of these
|
| 3 |
Colligative properites are the properties of |
- A. Dilute solutions which behave as nearly ideal solution
- B. Concentrated solution which behave as nearly non-ideal solution
- C. Both a and b
- D. Neither a nor b
|
| 4 |
Which one of the following salts dissolved in water to form a solution with a pH lesser than 7 |
- A. NaCl
- B. CuSO4
- C. Na2CO3
- D. NH4Cl
|
| 5 |
A solution of glucose is 10% to volume in which 1 g mole of it is dissolved will be |
- A. 1 dm<sup>3</sup>
- B. 1.8 dm<sup>3</sup>
- C. 200 cm<sup>3</sup>
- D. 900 cm<sup>3</sup>
|
| 6 |
The molal boiling point constant is the the ratio of the elevation in boiling point to. |
- A. Molarity
- B. Molality
- C. Mole fraction of solvent
- D. Mole fraction of solute
|
| 7 |
The liquid pair which is not completely miscible is |
- A. CH<sub>3</sub>OH and water
- B. Alcohol and water
- C. Phenol and water
- D. Benzene and toluene
|
| 8 |
When an ionic compound is dissolved in water, it dissociate into positive and negative ions, which are surrounded by H2O molecule, This process is known as. |
- A. Hydrolysis
- B. Hydration
- C. Saturation
- D. solvolysis
|
| 9 |
Which concentration unit is independent of temperature. |
- A. Molarity
- B. Molality
- C. ppm
- D. both a and b
|
| 10 |
Molarity of pure water is |
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