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Class 12 Chemistry: Solutions
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MCQs on solutions types and concentration, solubility solutions, liquid solutions vapour pressure, ideal and non ideal solutions, abnormal molar masses, colligative properties and molar mass determination.
 

Class 12 Chemistry: Solutions
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25 Questions

1. What is the solubility product expression for silver chromate dissolving in water?
2. What is the molar solubility product for V3(PO4)5 in terms of KSP?
3. What type of solution is Cranberry glass?
4. What is the molarity of a 15 ml, 2 M aqueous solution when 285 ml of water is added to it?
5. A cell with lots of salt inside it is placed in a vessel containing just water. Which process takes place?
6. Which of the following concentration determine techniques gives a more accurate value?
7. Which of the following is not a solid solution?
8. At NTP, the solubility of natural gas in water is 0.8 mole of gas/kg of water. What is the Henry's law constant for natural gas?
9. Which of the following is true regarding non-ideal solutions with negative deviation?
10. What is the observation on adding a solute crystal to a supersaturated solution?
11. Which of the following best describes the difficulty in breathing as one climbs to higher altitudes?
12. Boiling point of chloroform is 61°C. After addition of 5.0 g of a non-volatile solute to 20 g chloroform boils at 64.63°C. If kb = 3.63 K kg mol-1, what is the molecular weight of the solute?
13. Two components A and B have their pure vapor pressures in the ratio 1 ∶ 4 and respective mole fractions in solution in ratio 1 ∶ 2. What is the mole fraction of component B in vapor phase?
14. What are the properties arising due to varying concentrations of solute in a given solvent, irrespective of the nature of solute with respect to the solvent?
15. In a saturated solution with endothermic dissolution, how does the concentration of dissolved solute change with increasing then decreasing temperature?
16. Which of the following is not an example of an Ideal solution?
17. What phenomenon occurs when a solution's equilibrium vapor pressure equals the surrounding atmospheric pressure?
18. Considering a binary solution of components A and B obeys Raoult's law, which of the following is true?
19. Pure CS2 melts at -112°C. 228 grams of propylene glycol crystals is mixed with 500 grams of CS2. If kf of CS2 = -3.83 K kg mol-1 what is the depression in freezing point?
20. Which of the following is not an example of a non-ideal solution showing negative deviation?
21. What is the molality of a solution formed when 58.5g of NaCl is dissolved in 2000 mL of water?
22. 5 moles of liquid X and 10 moles of liquid Y make a solution having a total vapour pressure 70 torr. The vapour pressures of pure X and pure Y are 64 torr and 76 torr respectively. Which of the following is true regarding the described solution?
23. If the relative lowering of pressure of o-xylene is 0.005 due to addition of 0.5 grams of non-volatile solute in 500 grams of solvent, what is the molecular weight of the solute?
24. Acetic acid associates as dimers in benzene. What is the Van't Hoff factor (i) if the degree of association of acetic acid is 50%?
25. At 70°C the vapor pressure of pure water is 31 kPa. Which of the following is most likely the vapor pressure of a 2.0 molal aq. glucose solution at 70°C?

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