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Chemistry Fsc Part 1 Chapter 9 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which solution is an example of solid in gas | Fog Steel smoke Air |
| 2 | Butter is solution of | Liquid in liquid Solid and liquid Liquid and solid Liquid and gas |
| 3 | The temperature which partially immiscible pair of liquid leads to the formation of a single phase in called. | Transition temperature Absolute temperature Consulate temperature Room temperature |
| 4 | Which pair of mixture is called ideal solution. | Chlorobenzene and bromobenzene Water alcohol Water ether HCl and water |
| 5 | A negative deviation from Raoult's law in solution means, the solution has | High boiling point and high vapour pressure High boiling point and low vapour pressure Low boiling point and low vapour pressure Low boiling point and high vapour pressure |
| 6 | Azeotropic mixture | Obey Raoult's law Do not obey Raoult's law Boils at low temperature only Boils at high temperature only |
| 7 | Relative lowering of vapour pressure is equal to. |
Mole fraction of solute Mole fraction of solvent Mole fraction of solute and solvent Molality of solution |
| 8 | In case of non volatile solute, lowering of vapour pressure is proportional to. | Mass fraction of solute Mole fraction of solvent Mole fraction of solute None of the above |
| 9 | Which of the following mixtures of liquids show negative deviation | Methyl alcohol water Hydrochloric acid water Carbon di sulphide chloroform Chlorobenzene bromobenzene |
| 10 | Unit of mole fraction is | mol dm-3 mol kg-1 g dm-3 No unit |
| 11 | What amount of NaOH is required to prepare 500 g of 0.5 molal solution. | 10 g 20 g 30 g 40 g |
| 12 | Which concentration unit is independent of temperature. | Molarity Molality ppm both a and b |
| 13 | In a solution 7.8 g of benzene and 46 g of toluene is present The mole fraction of benzene is. | 1/2 1/3 1/5 1/6 |
| 14 | The molarity of 2% w/v NaOH solution is | 2 0.25 0.05 0.5 |
| 15 | The sum of mole percent of all the components of solution is always equal to. | Unity 100 Less than one Less than 100 |
| 16 | 10 g of NaOH have been dissolved per kg of solvent The molality of solution. | 0.25 m 0.5 m 1.0 m 2.0 m |
| 17 | 10 g of NaOH has been dissolved per dm3 of solution. The molarity of solution is. | 0.5 M 0.25 M 1 M 2 M |
