Ch-9 SolutionsBy abdulslambsn@gmail.com / October 6, 2025 Welcome To Your Quiz "Ch-9 Solutions" Click on "Start Quiz" To Continue... 1. Depression in the freezing point is directly proportional to: Molarity of solution Molality of solution Molality of solvent None None 2. Benzene - ether can form: Ideal solution Non- ideal solution Buffer solution None of these None 3. In a mixture of 28 grams of N2 and 96 grams of O2 the mole fraction of N2: 1.1 0.51 0.25 0.11 None 4. The number of moles of solute per kilogram of solvent is called: Molality Molarity Mole-fraction Normality None 5. 0.1 molar of solute dissolved in 100g of the solvent will be: 0.1 molar 1.0 molal 0.5 molal none of these None 6. The amount of NaOH required to prepared 250 cm³ of 1M solution in grams is: 10 15 20 25 None 7. The azeotropic mixture of solution showing positive deviation can be distilled at _____ boiling point. Maximum Minimum No sharp None of these None 8. The hydration energy of Br- ion is _______ than F- ion: Equal to Smaller than Greater than None of these None 9. The molal boiling point elevation depends upon. Nature of solvent Vapour pressure of solution Nature of solute pH of solution None 10. An aqueous solution of potassium acetate (CH3OОK) is: Acidic Basic Neutral Amphoteric None 11. 2g of NaOH is dissolved in 500 cm³ of solution. The molarity of the solution is: 2.0 M 1.0 М 0.2 M 0.1 M None 12. In a mixture of 7g of N2 and 8g of O2 the mole fraction of O2 is: 1 0.2 0.5 0.7 None 13. Cheese and butter are the example of solution of: Liquid in liquid Solid in solid Liquid in solid Solid in liquid None 14. Water of crystallization of CuSO4 is: 2 5 6 10 None 15. The critical solution temperature of phenol-water system is: 35.6°C 49.5°C 57.8°C 65.9°C None 16. The mass of Glucose required to prepare 1 dm³ of 20% glucose solution is: 18g 180g 36g 200g None 17. Which one of the following is an ideal solution: C2H5OH and H2O C6H6 and CCl4 CHCl3 and (CH3)2 CO H2O and HCI None 18. 18 g glucose is dissolved in 90 g of water. The relative lowering of vapour pressure is equal to: 1/5 5.1 1/51 6 None 19. Which of the following concentration unit is used for very dilute solutions: Molarity Normality Molality ppm None 20. Which of the following is affected by temperature change: Molality Molarity Mole fraction None of these None 21. Hydrolysis of CH3COOK will produce: Acidic solution Basic solution Neutral Solution None of these None 22. The substance which has water of crystallization in it, is called: Hydrate Hydride Hydrolysis Complex None 23. The molarity of 2% W/V NaOH solution is: 2 0.25 0.05 0.5 None 24. Which one of the following salts do not hydrolyse: CuSO4 Na2CO3 Na2SO4 Al2(CO3)3 None 25. If 9.8g H2SO4 is present in one dm3 of solution, the solution is: 0.1 N 0.1 M 0.1 m 0.5 M None 26. An aqueous solution boils at 100.52°C. It should freeze at: 0°C -1.86°C -2°C +1.86°C None 27. Which has maximum freezing point: 1 m NaCl 1 m KCl 1 m CaCl2 1 m Urea None 28. Which cation has least heat of hydration: Li + Na + K + Mg +2 None 29. 10% aqueous solution of glucose freezes at: 0°C Less than 0°C Greater than 0°C Greater than 10°C None 30. A mixture of benzene and toluene form: Ideal solution Non - ideal solution Azeotropic mixture Suspension None 1 out of 6 Thanks For Taking This Quiz - Please See Your Answers/Results Below After Entering Your Name & Email... Name Email Time's up
