1. Solutions

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1. The component present in a larger amount in a solution is called?
   A) Solute  |  B) Solvent  |  C) Mixture  |  D) Element
2. What is the unit of Molarity?
   A) mol/kg  |  B) mol/L  |  C) g/L  |  D) mol
3. Brass is a solid solution of?
   A) Cu + Zn  |  B) Cu + Sn  |  C) Fe + Cr  |  D) Pb + Sn
4. What type of mixture is a solution of sugar in water?
   A) Heterogeneous  |  B) Homogeneous  |  C) Compound  |  D) Suspension
5. Normality is denoted by which letter?
   A) M  |  B) m  |  C) N  |  D) X
6. The solute in sodium amalgam is?
   A) Mercury  |  B) Sodium  |  C) Water  |  D) Hydrogen
7. The process of dissolving a solid in a liquid is called?
   A) Condensation  |  B) Dissolution  |  C) Boiling  |  D) Evaporation
8. The method of obtaining salt from seawater is?
   A) Filtration  |  B) Evaporation  |  C) Sedimentation  |  D) Deposition
9. The method of expressing concentration of a solution that does not depend on temperature is?
   A) Molarity  |  B) Normality  |  C) Molality  |  D) Formality
10. The number of moles of solute present in 1 litre of solution is called?
    A) Molarity  |  B) Molality  |  C) Mole fraction  |  D) Percentage
11. Solutions having the same osmotic pressure are called?
    A) Hypertonic solutions  |  B) Isotonic solutions  |  C) Hypotonic solutions  |  D) None
12. On increasing the temperature, molarity?
    A) Decreases  |  B) Increases  |  C) Remains same  |  D) None
13. What can pass through a semipermeable membrane?
    A) Only solvent molecules  |  B) Only solute molecules  |  C) Both  |  D) None
14. The molarity of pure water is?
    A) 18  |  B) 50  |  C) 55.55  |  D) 5.56
15. The concentration unit used in medicines and pharmacy is?
    A) Mass %  |  B) Mass-volume %  |  C) Volume %  |  D) Molarity
16. How many types of solutions are possible in nature?
    A) 6  |  B) 8  |  C) 9  |  D) 10
17. Molality is expressed in?
    A) g/L  |  B) L/mol  |  C) mol/L  |  D) mol/kg
18. The sum of mole fractions of all components present in a solution is?
    A) 100  |  B) 1  |  C) 10  |  D) 2
19. The ratio of the number of moles of solute to the total number of moles in a solution is called?
    A) Mole fraction  |  B) Molarity  |  C) Concentration  |  D) Molality
20. A solution of camphor in nitrogen gas is an example of?
    A) Solid in gas  |  B) Liquid in gas  |  C) Gas in liquid  |  D) Gas in solid
21. What is the effect of increasing temperature on the solubility of gases in liquids?
    A) Increases  |  B) Decreases  |  C) Remains constant  |  D) First increases then decreases
22. Henry's law is related to?
    A) Solubility of solid in liquid  |  B) Solubility of gas in liquid  |  C) Solubility of liquid in liquid  |  D) Temperature
23. What will happen if a cell is placed in a hypertonic solution?
    A) It will swell  |  B) It will shrink  |  C) No change  |  D) It will burst
24. The value of ΔH (mix) for an ideal solution is?
    A) > 0  |  B) < 0  |  C) 0  |  D) Infinite
25. Azeotropic mixtures are those which?
    A) Boil at different temperatures  |  B) Boil at a constant temperature  |  C) Do not cool  |  D) Are colourless
26. An example of a non-ideal solution showing positive deviation is?
    A) Acetone + Ethanol  |  B) Chloroform + Acetone  |  C) Water + HCl  |  D) Water + Nitric Acid
27. Relative lowering of vapour pressure is a property?
    A) Chemical  |  B) Colligative  |  C) Physical  |  D) Elemental
28. What is the same in isotonic solutions?
    A) Molarity  |  B) Boiling point  |  C) Osmotic pressure  |  D) Density
29. Why is helium added to scuba divers' cylinders?
    A) It is cheap  |  B) It is less soluble in blood  |  C) It increases oxygen  |  D) It is not poisonous
30. The best method to measure osmotic pressure is?
    A) Berkeley-Hartley method  |  B) Raoult method  |  C) Ostwald method  |  D) Beckmann method
31. The cause of 'Anoxia' in people living at high altitudes is?
    A) Low oxygen pressure  |  B) High oxygen pressure  |  C) Cold  |  D) Low humidity
32. An ideal solution is one which obeys at all concentrations?
    A) Henry's law  |  B) Raoult's law  |  C) Van't Hoff law  |  D) Boyle's law
33. In reverse osmosis (RO), water molecules move from?
    A) Pure to impure  |  B) Impure to pure  |  C) Do not move  |  D) None
34. The factors affecting vapour pressure are?
    A) Nature of liquid  |  B) Viscosity  |  C) Temperature  |  D) All of the above
35. A mixture of benzene and toluene is?
    A) An ideal solution  |  B) A non-ideal solution  |  C) A suspension  |  D) A colloid
36. On mixing two liquids X and Y, the solution becomes hot. It will show?
    A) Ideal behavior  |  B) Negative deviation  |  C) Positive deviation  |  D) None
37. The temperature at which the vapour pressure of a liquid becomes equal to the vapour pressure of the solid is?
    A) Vapour pressure  |  B) Boiling point  |  C) Melting point  |  D) Freezing point
38. Why is CaCl2 suitable for removing ice on roads?
    A) i is high  |  B) i is low  |  C) It does not dissociate  |  D) None
39. According to Dalton, partial pressure (P) is proportional to?
    A) Number of moles  |  B) Pressure  |  C) Mole fraction  |  D) Temperature
40. At constant temperature, the solubility of a gas is proportional to the pressure of the gas. This is?
    A) Boyle's law  |  B) Henry's law  |  C) Charles's law  |  D) Raoult's law
41. The value of Van't Hoff factor (i) for dissociation is?
    A) i = 1  |  B) i > 1  |  C) i < 1  |  D) i = 0
42. Which of the following will have the highest osmotic pressure?
    A) 1M Glucose  |  B) 1M NaCl  |  C) 1M BaCl2  |  D) 1M Urea
43. The correct formula for elevation in boiling point is?
    A) ΔTb = Kb * m  |  B) ΔTb = Kb / m  |  C) ΔTb = m / Kb  |  D) ΔTb = Kb + m
44. The value of Van't Hoff factor (i) for K2SO4 is?
    A) 1  |  B) 2  |  C) 3  |  D) 4
45. 100 ml of urea solution contains 6.02×10²⁰ molecules. What will be its concentration?
    A) 1.00 M  |  B) 0.01M  |  C) 0.00001 M  |  D) 0.1 M
46. A 5% solution of sugar (342) is isotonic with 1% of an unknown solute. Mass of unknown?
    A) 171.2  |  B) 68.4  |  C) 34.2  |  D) 136.2
47. Whose Van't Hoff factor value will be same as K4[Fe(CN)6]?
    A) NaCl  |  B) Na2SO4  |  C) Al2(SO4)3  |  D) Al(NO3)3
48. The osmotic pressure of M/25 solution of urea at 25°C will be?
    A) 1.0786 atm  |  B) 2.674 atm  |  C) 0.9786 atm  |  D) 0.0667 atm
49. Which has the lowest freezing point in 0.1M aqueous solution?
    A) Potassium sulfate  |  B) Sodium chloride  |  C) Urea  |  D) Glucose
50. The mole fraction of solute in 1 molal aqueous solution is?
    A) 1  |  B) 1.8  |  C) 0.18  |  D) 0.018
51. Which will have the highest boiling point among 1% CaCl2, 1% NaCl and 1% Glucose?
    A) Glucose  |  B) NaCl  |  C) CaCl2  |  D) Sucrose
52. What will be the normality of 3 M phosphoric acid (H3PO4)?
    A) 9 N  |  B) 0.3 N  |  C) 3 N  |  D) 1 N
53. 2 grams of NaOH is dissolved in 200 ml. What will be the molarity?
    A) 0.25  |  B) 0.5  |  C) 5  |  D) 10
54. The normality on dissolving 80 g NaOH in 500 ml solution will be?
    A) 1N  |  B) 2N  |  C) 3N  |  D) 4N
55. The final molarity on mixing 750 ml of 0.5M HCl and 250 ml of 2M HCl is?
    A) 0.875M  |  B) 1.00 M  |  C) 1.75 M  |  D) 0.975M
56. The value of Van't Hoff factor (i) for acetic acid in benzene will be?
    A) 1  |  B) 0.5  |  C) 2  |  D) 3
57. The increasing order of boiling point of 0.1M Na2SO4 (A), NaCl (B), Glucose (C), Al2(SO4)3 (D) is?
    A) C < B < A < D  |  B) C < A < D < B  |  C) D < B < A < C  |  D) B < C < A < D
58. Which of the following is an incorrect formula for osmotic pressure?
    A) πV = nRT  |  B) π = nRT/P  |  C) πV = wRT/m  |  D) π = CRT
59. 2 grams of NaOH is dissolved in 250 grams of water. The concentration (m) will be?
    A) 0.2 M  |  B) 0.2 m  |  C) 0.2 N  |  D) 4 g/L
60. 1 mole of solute is dissolved in 500 ml of water. The molarity will be?
    A) 1M  |  B) 2M  |  C) 0.5M  |  D) 10M