| 1 |
Azeotropic mixture |
- A. Obey Raoult's law
- B. Do not obey Raoult's law
- C. Boils at low temperature only
- D. Boils at high temperature only
|
| 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 |
An aqueous solution of ethanol in water has vapour pressure |
- A. Equal to that water
- B. Equal to that of ethanol
- C. More than that of H<sub>2</sub>O
- D. less than that of water
|
| 4 |
Relative lowering of vapour pressure is equl to. |
- A. Mole fraction of solute
- B. Mole fraction of solvent
- C. Molarity
- D. Molality
|
| 5 |
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
|
| 6 |
An aqueous solution of ethanol in water has vapour pressure. |
- A. Equal to that of water
- B. Equal to that of ethanol
- C. More than that of water
- D. Less than that of water
|
| 7 |
When an ionic compound is dissolved in water, it dissociate into positive and negative ions, which are surrounded byH2O molecule, This process is known as. |
- A. Hydrolysis
- B. Hydration
- C. Saturation
- D. solvolysis
|
| 8 |
Solubility of which substance decreases by incressing temperature. |
- A. NaNO3
- B. KNO2
- C. NaCl
- D. Ce2(SO4)3
|
| 9 |
Depression of freezing point method is used for determination of molar masses of |
- A. Electrolytes
- B. Non-volatile solids
- C. Volatile solids
- D. Volatile liquids
|
| 10 |
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
|