Osmosis and Osmotic Pressure, Class 12 Chemistry NCERT Solutions

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. What is the osmotic pressure of a solution containing 3.42 g of cane sugar in 1litre solution at 27°C .Molar mass of cane sugar is 342 g.

 0.246 atm

 2.46 atm

 0.2 atm

 1 atm

Question 1 of 10

2. What is the effect of temperature on the osmotic pressure of solution?

 It decreases with increase in temperature

 It decreases very very slowly with increase in temperature

  No effect of temperature

  It increases with increase in temperature

Question 2 of 10

3. Which of the following colligative property can provide molar mass of proteins ( or polymers or colloids) with greater precision?

 Elevation of boiling point

 Osmotic pressure

 Relative lowering of vapour pressure

 Depression of freezing point

Question 3 of 10

4. Equal volume of 1 M urea and 1 M glucose are mixed. the mixture will have

 same osmotic pressure

 lower osmatic pressure

  higher osmotic pressure

  none of these

Question 4 of 10

5. The process of movement of solvent through a semipermeable membrane from the solution to the pure solvent by applying excess pressure on the solution side is called

 Association

 Diffusion

 Osmosis

 Reverse osmosis

Question 5 of 10

6. The osmotic pressure of one molar solution at 0°C is

 11.5 atm

 12.2atm

  22.4atm

 18.6atm

Question 6 of 10

7. Which one of the following processes is used for desalination of sea water ?

 Electrophoresis

 Osmosis

  Reverse osmosis

  Diffusion

Question 7 of 10

8. On lowering of temperature of solution, the rate of osmosis decreases because

 The velocity of solvent particles increases

  The solute undergoes either dissociation or association

 The rate of transfer of particle across semi permeable membrane decreases.

 The viscosity of solvent increases.

Question 8 of 10

9. The phenomenon of flow of solvent molecules through a semi permeable membrane from pure solvent to solution is called

  Association

  Osmosis

  Diffusion

  Reverse osmosis

Question 9 of 10

10. What is the molar mass of the nonelectrolyte if 2 g of it when dissolved in 100 mL of solution has osmotic pressure of 0.1 atm at 27 °C?

 4.29 g/mol

 4.92 g/mol

 4.92 kg/mol

 4.1g/mol

Question 10 of 10

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