| 1 |
Heat of solution of an ionic compound is equal to. |
- A. Hydration energy
- B. Lattice energy
- C. Slum of both 'a' and 'b'
- D. Difference of both a and b
|
| 2 |
The molal boiling point constant is the ration of the elevation in boiling point to |
- A. Molarity
- B. Molality
- C. Mole fraction of solvent
- D. Mole fraction of solute
|
| 3 |
Water and Phenol are partially miscible to each other at room temperature when both liquids are mixed together which is upper layer. |
- A. Water in Phenol
- B. Phenol and water
- C. Pure phenol
- D. Pure water
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| 4 |
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
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| 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
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| 6 |
Two solution of NaCI and KCI are prepared separately by dissolving same moles of them in the fixed amount of solvent. Which of the following statements is true for these solution |
- A. KCI solution will have higher boiling point than NaCI solution
- B. Both the solutions have different boiling point
- C. KCI and NaCI solution possess same vapour pressure
- D. KCI solution possesses lower freezing point than NaCI solution
|
| 7 |
A solution of sucrose is 34.2% The volume of solution containing one mole of solute. |
- A. 500 cm3
- B. 1000 cm3
- C. 342 cm3
- D. 3420 cm3
|
| 8 |
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
|
| 9 |
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
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| 10 |
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
|