| 1 |
What amount of NaOH is required to prepare 500 g of 0.5 molal solution. |
- A. 10 g
- B. 20 g
- C. 30 g
- D. 40 g
|
| 2 |
The molal boiling point constant is the ratio of elevation of boiling point to |
- A. Molarity
- B. Mole fraction of solvent
- C. Molality
- D. Mole fraction of solute
|
| 3 |
In azeotropic mixture showing positive deviation from Raoult's law the volume of the mixture is |
- A. Slightly more than the total volume of the components
- B. Slightly less than the total volume of the components
- C. Equal to the total volume of the components
- D. None of these
|
| 4 |
Molal boiling point elevation depends upon |
- A. Nature of solvent
- B. Natrue of solute
- C. Vapour pressure of solution
- D. None of these
|
| 5 |
Which of the following solutions has the highest boiling point |
- A. 5.85% solution of sodium chloride
- B. 18.0% solution of glucose
- C. 6.0% solution of urea
- D. All have the same boiling points
|
| 6 |
An azeotropic mixture of two liquids boils at lower temperature than either of them when. |
- A. It is saturated
- B. It shows positive deviation from Raoult's law
- C. It shows negative deviation from Raoult's law
- D. It is metastable
|
| 7 |
<div>Relative lowering of vapour pressure is equal to.</div> |
- A. Mole fraction of solute
- B. Mole fraction of solvent
- C. Mole fraction of solute and solvent
- D. Molality of solution
|
| 8 |
Which concentration unit is independent of temperature. |
- A. Molarity
- B. Molality
- C. ppm
- D. both a and b
|
| 9 |
Which pair of mixture is called ideal solution. |
- A. Chlorobenzene and bromobenzene
- B. Water alcohol
- C. Water ether
- D. HCl and water
|
| 10 |
Salt of weak acid with strong base when dissolved in water gives. |
- A. Acidic solution
- B. Basic solution
- C. Neutral solution
- D. None of above
|