Page 2 - HA

a) they contain more amount of solution.

b) they contain more amount of solvent.

c) they contain more amount of solute

d) They contain equal amounts of solvent and solute.

Q.7 The concentration of 500mL of a sugar solution containing 50g of sugar dissolved in
it is:

a) 50% mass/volume.

b) 10%mass/volume

c) 50% mass/mass

d) 10% mass/mass

Q.8 The concentration of a 1L of a salt solution is 20% mass/volume. What is the
quantity of salt present in it?

a) 100g c) 500g.
b) 200g d) 1000g.

Q.9 The concentration of a solution is always expressed in terms of quantity solute only
(True/False)

Q.10 Mass- mass percentage can only be used only when solute is solid. (True/False)

SUBJECTIVE QUESTIONS

S.LNo. Questions Mark Skill
Q.1 What is meant by the concentration of a solution? 1 E/U
Q.2 What does a 15% alcohol solution means? 1 Av/A
Q.3 Calculate the concentration of a solution which contains 2.5g of salt 3 Av/A
dissolved in 50g of water?
Q.4 110 g solution of salt is present in 550 g of solution. Calculate the 3 Av/A
concentration of solution.

Q.5 a) How much water should be mixed with 12 ml of alcohol to obtain 5 D/A
12% of alcohol?
b) What do you mean by volume percentage of a solution?

NCERT Textbook- Std.-IX-Science: Pg.No:18 Q.3 and Pg. No. 28 Q.3