## Solutions Quiz-11

IIT JEE exam which consists of JEE Main and JEE Advanced is one of the most important entrance exams for engineering aspirants. The exam is held for candidates who are aspiring to pursue a career in the field of engineering and technical studies. Chemistry is important because everything you do is chemistry! Even your body is made of chemicals. Chemical reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything..

Q1. Which salt shows maximum osmotic pressure in its 1 m solution
•  AgNO3
•  Na2 SO4
•  (NH4 )3 PO4
•  MgCl2
Solution
Q2.The osmotic pressure of 40% (weight/volume) urea solution is 1.64 atm and that of 3.42% (weight/volume) cane sugar is 2.46 atm. When equal volumes of the above two solutions are mixed, the osmotic pressure of the resulting solution is
•  1.64 atm
•  2.46 atm
•  4.10 atm
•  2.05 atm
Q3.  Which solution will show maximum elevation in boiling point?
•  0.1 M KCl
•  0.1 M BaCl2
•  0.1 MFeCl3
•  0.1M Fe2(SO4 )3
Solution

Q4. An ideal solution was obtained by mixing methanol and ethanol. If the partial vapour pressure of methanol and ethanol are 2.619 kPa and 4.556 kPa, respectively, the composition of vapour (in terms of mole fraction) will be
•  0.635 MeOH,0.365 EtOH
•  0.365 MeOH,0.635 EtOH
•  0.574 MeOH,0.326 EtOH
•  0.173 MeOH,0.827 EtOH
Solution
Q5.The colligative properties of a solution depend on
•  The number of solute particles present in it
•  The chemical nature of the solute particles present in it
•  The nature of the solvent used
•  None
Solution
Q6. At 40℃, the vapour pressures of pure liquids, benzene and toluene are 160 mm Hg and 60 mm Hg, respectively. At the same temperature, the vapour pressure of an equimolar solution of the two liquids, assuming the ideal solution, should be
•  140 mm Hg
•  110 mm Hg
• 220 mm Hg
•  100 mm Hg
Solution

Q7.pH of a 0.1 M monobasic acid is found to be 2. Hence, its osmotic pressure at a given temperature T K is
•  0.1RT
•  0.11RT
•  1.1RT
•  0.01RT
Solution

Q8.Equimolal solutions A and B show depression in freezing point in the ratio 2:1. A remains in the normal state in solution. B will be
•  Normal in solution
•  Dissociated in solution
•  Associated in solution
•  Hydrolysed in solution
Solution
Q9.A solution containing 8.6 g urea in 1 L was found to be isotonic with a 5% (weight/volume) solution of organic non-volatile solute. The molecular weight of latter is
•  348.9
•  34.89
•  3489
•  861.2
Solution

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SOLUTIONS Quiz-11