Page 1 :
8., 2.2 Expressing Concentration of Solutions, Which of the following is dependent on temperature?, (a) Molarity, (b) Mole fraction, 1., (c) Weight percentage, (d) Molality, (NEET 2017), 2., What is the mole fraction of the solute in a, 1.00 m aqueous solution?, (a) 1.770, (b) 0.0354, (d) 0.177, (c) 0.0177, (2015, 2011), How many grams of concentrated nitric acid, solution should be used to prepare 250 mL of, 2.0 M HNO,? The concentrated acid is 70% HNO,., (a) 70.0 g conc. HNO,, (b) 54.0 g conc. HNO;, (c) 45.0 g conc. HNO,, (d) 90.0 g conc. HNO,, 3., (NEET 2013), Which of the following compounds can be used as, antifreeze in automobile radiators?, 4., (a) Methyl alcohol, (c) Nitrophenol, (b) Glycol, (d) Ethyl alcohol, (2012), Concentrated aqueous sulphuric acid is 98% H SO,, by mass and has a density of 1.80 g ml. Volume, of acid required to make one litre of 0.1 M H,SO,, 5., solution is, (a) 16.65 mL, (b) 22.20 ml., (d) 11.10 ml., (c) 5.55 mL, (2007), 6., The mole fraction of the solute in one molal aqueous, solution is, (a) 0.009, (b) 0.018, (d) 0.036, (c) 0.027, (2005), 7. 2.5 litre of 1 M NAOH solution is mixed with, another 3 litre of 0.5 M NaOH solution. Then find, out molarity of resultant solution., (a) 0.80 M, (c) 0.73 M, (b) 1.0 M, (d) 0.50 M, (2002)

Page 2 :
How many g of dibasic acid (mol. weight 200), should be present in 100 mL of the aqueous solution, to give strength of 0.1 N?, (a) 10 g, (c) 1g, 8., (b) 2 g, (d) 20 g, (1999), What is the molarity of H,SO, solution, that has, a density 1.84 g/cc at 35°C and contains 98% by, weight?, (a) 18.4 M, 9., (b) 18 M, (c) 4.18 M, (d) 8.14 M, (1996), 10. The concentration unit, independent of temperature,, would be, (a) normality, (c) molality, (b) weight volume percent, (d) molarity. (1995, 1992), 11. How many grams of CH,OIH should be added to, water to prepare 150 mL. solution of 2 M CH,OH?, (a) 9.6 x 10, (c) 9.6, (b) 2.4 x 10, (d) 2.4, (1994), 2.4 Vapour Pressure of Liquid Solutions, 12. In water saturated air, the mole fraction of water, vapour is 0.02. If the total pressure of the saturated, air is 1.2 atm, the partial pressure of dry air is, (b) 1.76 atm, (d) 0.98 atm., (Odisha NEET 2019), (a) 1.18 atm, (c) 1.176 atm, 13. PA and ps are the vapour pressures, components, A and B, respectively of an ideal, binary solution. If x4 represents the mole fraction of, component A, the total pressure of the solution will, be, of, pure liquid, S, (a) Pa+ x(Ps- PA), (c) PB+ X4(Pa- PA), (b) PA+ XA(PA- Ps), (d) Pa+ X4 (PA-PR), (2012), 14. Vapour pressure of chloroform (CHCI,) and, dichloromethane (CH,Cl,) at 25°C are 200 mm Hg, and 41.5 mm Hg respectively. Vapour pressure of, the solution obtained by mixing 25.5 g of CHCI, and, 40 g of CH,Cl, at the same temperature will be

Page 3 :
Solutions, (Molecular mass of CIHCI, = 119.5 u and molecular, mass of CH, CI, = 85 u), (a) 173.9 mm Hg, (c) 347.9 mm Hg, 22, (b) 615.0 mm Hg, (d) 285.5 mm Hg, (Mains 2012), 15. A solution has a 1:4 mole ratio of pentane to hexane., The vapour pressures of the pure hydrocarbons at, 20°Care 440 mm ig for pentane and 120 mm Hg for, hexane. The mole fraction of pentane in the vapour, phase would be, (a) 0.200, (c) 0.786, (b) 0.549, (d) 0.178, (2005), 16. The vapour pressure of two liquids P and Q are 80, and 60 terr, respectively. The total vapour pressure, ot solution ohtained hy mixing 3 mole of P and, 2 mol of Q would be, 23, (a) 72 torr, (b) 140 torr, Ic) 68 turr, (d) 20 torr, (2005), 24, 2.5 Ideal and Non-Ideal Solutions, 17. The mixture which shows positive deviation from, Raoult's law is, (a) etlianol + acetone, (b) benzene -toluene, (c) acctone+ chloruform, (d) chlorocthane i bromoethane., 25, (NEET 2020), 18. For an ideal solution, the correct option is, (a) AuG1 at vonstant Tand P, (b) AmirS 0 at constant T and P, (c) Am V=0 at constant 7'and P, (d) Ami, H=0 at constant 7'and P., (NEET 2019), 19. The mixture that forms maximum boiling azeotrupe, IS, 26, fa) heptane + octane, (c) ethanol + water, (d) acetone + carbon disulphide., (b) water + nitric acid, (NEET 2019), 20. Which of the following statements is correct, 27, regarding a solution of two components A and B, exhibiting positive deviation from ideal behaviour?, (a) Intermolecular attractive forces between A-A, and B-B are stronger than those between A-B., (b) As H 0 at constant 7 and P., (c) Ai V-0 at constant T and P., (d) Intermolecular, forces between, A-A and B-B are equal to those between A-B., 21, attractive, (Odisha NEET 2019), 21. Which one of the following is incorrect for ideal, solution?, (a) AHmir = 0, (b) AUmix, %3D, =0, (c) AP = Phy-Pealcalsted by Raoalt's loe", abs, (d) AGis - 0, (NEET-II 2016)

Page 4 :
6., 22. Which of the following statements about the, composition of the vapour ever an ideal 1 :1, molar mixture of henzene and toluene is correct?, Assume that the temperature is constant al 25"C., (Given, vapour pressure data at 25°C, benzene-, 12.8 kPa, toluene 3.85 kPa), (a) The vapour will contain equal amounts of, benzene and toluene., (b) Not cnough information is given to make a, prediction., (c) The vapour will contain at higher percentage of, henzenc., (d) The vapour will cuntain a higher percentage of, toluene., (NEET-I 2016), 23. Which condition is not satished by an ideal solution?, (a) A V = 0, (c) Oheyance to Raoult's Law, (d) AuH 0, (b) AmiS - 0, (Karnataka NEFT 2013), 24. A solution of acetone in ethanol, (a) oheys Raoult's law, (b) shows a negative deviation from Raoult's law, (c) shows a positive deviation trom Raoull's law, (d) behaves like a near ideal solution., (2006), 25. A sulution contaming components A and B fallows, Raoult's law, (a) A R attraction force is greater than A A and, B-B, (b) A Battraction force is less than A-A and B-B, (c) A - B attraction forte remains same as A - A and, 8-B, (d) volume of solutinn is different from sum of, volume of solute and solvent., (2002), 26. All form ideal solution except, (a) C,H, and C,H,CII, (b) C,H, and C.11.I, (c) C,H,Cl and C,H,Br (d) C,H;l and C,HOI, (1988), 27. An ideal solution is fortmed when its components, (a) have no volume change on mixing, (b) have no enthalpy change on mixing, (c) have buth the above characteristics, (d) have high solubility., (1988), 2.6 Colligative Properties and, Determination of Molar Mass, 28. The freezing point depression constant (K of, benzene is 5.12 K kg mol-. The freezing point, depression for the solution of molality 0.078 m, containing a non-electrolyte solute in benzene, (rounded off upto two decimal places), (a) 0.20 K, (c) 0.40 K, (b) 0.80 K, (d) 0.60 K (NEET 2020)

Page 5 :
10, WitG NE, 29. If moaiity of the dilute selution is deubled, the, value of molal depression constant (K) will be, (a) halved, 37. A, (c) unchanged, (b) tripled, (d) doubled. (NEET 2017), 30. At 100 C the vapour pressure of a solution of 6.5 g, of a solute in 100 g water is 732 mm. If K,=0.52, the, honling point of this solution will be, (a) 102 "C, () 101 °C, (b) 103 "C, (d) 100 C, (NEET-I 2016), 31. 200 mL of an aqueous solution of a protein contains, 38., its 1.26 g. The osmotic poressare of this solution at, 300K is found to be 2.57 x 10 bar. The molar mass, of protein will be (R = 0,083 L. bar mol- K-), (a) 51022 g mel, (c) 31011 gmel-, (b) 122044 g mol, (d) 61038 g mol-, 39., (Mains 2011), 342 g mol-), 32. A solution of sucrose (molar mass, has been prepared by dissolving 68.5 g of sucrose in, 1000 g of water. The freezing point of the sulution, obtamed will be (K, for water 1.86 K kg mol), (a), ()+0372 C, 0.372 C, (b), 0.520 C, (d) -0.570 "C, (2010), 40., 33. During osmosis, flow of water through, semipermeable membrane is, (a) from solution having lower concentration only, (b) from solution having higher concentration only, (c) from both sides of semipermeable membrane, with equal flow rates, (d) from both sides of semipermeable mermbrane, with unequal flow rates., (2006), 41, 34. 1.00 g of a non-electrolyte solute (molar mass, 250 g mol-) was dissolved in 51.2 g of benzene., If the freezing point constant, K, of benzene is, 5.12 K kg mol-', the freezing point of benzene will, be lowered by, (b) 0.4 K, (d) 0.5 K, (a) 0.2 K, (2006), (c) 0.3 K, 35. A solution containing 10 g per dm of urea, (molecular mass 60 g mol-) is isotonic with a, 5% solution of a non volatile solute. The mnolecular, mass of this non-volatile solute is, (b) 250 g mol, (d) 350 g mol, (a) 200 g mol-!, (c) 300 g mol, (2006), 36. A solution of urea (mol. mass 56 g mol-) boils at, 100.18°C at the atmospheric pressure. If K, and K,, for water are 1.86 and 0.512 K kg mol- respectively,, the above solution will freeze at, (a) 0.654°C, (c) 6.54°C, (b) - 0.654 C, (d) -6.54°C, (2005)