FSC Part 1 Chemistry Chapter 9 Solutions Online Test | ilmkidunya

Chemistry Fsc Part 1 Chapter 9 Online Test

Sr. #	Questions	Answers Choice
1	Depression in the F.P is directly proportional to	Molarity of solution Molarity of solvent Molality of solvent Molality of solution
2	Which of the following solutions will have the highest boiling point	0.1 M NaCI 0.1 M CaCI<sub>2</sub> 0.1 M FeCI<sub>3</sub> 0.1 M glucose
3	Azeotropic mixture can be separated into pure components by	Distillation Fractional distillation Vacuum distillation None
4	The relative lowering of vapour pressure is equal to the mole fraction of the solute. This law is known as	Ostwald dilution law Raoult's law Vant hoff's law Henry's law
5	The unit of mole fraction is	Moles dm<sup>-3</sup> Moles kg<sup>-1</sup> Gram dm<sup>-3</sup> None
6	The liquid pair which is not completely miscible is	CH<sub>3</sub>OH and water Alcohol and water Phenol and water Benzene and toluene
7	Colligative properites are the properties of	Dilute solutions which behave as nearly ideal solution Concentrated solution which behave as nearly non-ideal solution Both a and b Neither a nor b
8	The molal boiling point constant is the ration of the elevation in boiling point to	Molarity Molality Mole fraction of solvent Mole fraction of solute
9	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	KCI solution will have higher boiling point than NaCI solution Both the solutions have different boiling point KCI and NaCI solution possess same vapour pressure KCI solution possesses lower freezing point than NaCI solution
10	Which of the following solutions has the highest boiling point	5.85% solution of sodium chloride 18.0% solution of glucose 6.0% solution of urea All have the same boiling points
11	In azeotropic mixture showing positive deviation from Raoult's law the volume of the mixture is	Slightly more than the total volume of the components Slightly less than the total volume of the components Equal to the total volume of the components None of these
12	Azeotrpic mixture of two liquids boils at a lower temperature than either of them, when	It is saturated Is shows positive deviation from Raoult's law It shows negative deviation from Raoult's law Is is metastable
13	An aqueous solution of ethanol in water has vapour pressure	Equal to that water Equal to that of ethanol More than that of H<sub>2</sub>O less than that of water
14	A solution of glucose is 10% to volume in which 1 g mole of it is dissolved will be	1 dm<sup>3</sup> 1.8 dm<sup>3</sup> 200 cm<sup>3</sup> 900 cm<sup>3</sup>
15	18 g of glucose is dissolved in 90 g of water. The relative lowering of vapour pressure is equal to	1/5 5.1 1/51 6
16	Molarity of pure water is	1 18 55.5 6

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