NCERT Chemistry Class 12 Solutions - Chapter 2 Quiz 1

1. The osmotic pressure of a solution is directly proportional to

the molecular concentration of the solute

the absolute temperature at a given concentration

the lowering of vapour pressure

all of the above

2. Isotonic solutions have the same

surface tension

concentration

osmotic pressure

viscosity

3. Which of the following is a colligative property?

osmotic pressure

boiling point

vapour pressure

electrical conductivity

4. Which of the following solutions has the highest freezing point?

0.1 M NaCl

0.1 M BaCl₂

0.1 M Al₂(SO₄)₃

0.1 M urea

5. Which 0.1 M aqueous solution will have the lowest freezing point?

potassium sulphate

sodium chloride

urea

glucose

6. The mass of (COOH)₂·2H₂O needed to prepare 500 ml of 0.1 molar solution is:

12.6 g

6.3 g

4.5 g

9.0 g

7. Which of the following solutions has the highest osmotic pressure?

1 M NaCl

1 M MgCl₂

1 M urea

1 M glucose

8. Which solution (in water) has the highest boiling point?

1 M NaCl

1 M MgCl₂

1 M urea

1 M glucose

9. Which aqueous solution containing 10 g of solute has the highest m.pt?

NaCl solution

KCl solution

sugar solution

glucose solution

10. Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl solutions are mixed. The concentration of NO₃⁻ ions in the mixture solution will be:

0.1 M

0.05 M

0.2 M

0.15 M

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