Suspensions & Colloids — Homi Bhabha Class 6 Chemistry MCQs with Solutions
Free Homi Bhabha Class 6 Chemistry Suspensions & Colloids MCQs with step-by-step solutions (10 questions). Part of Substances & Their Composition. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Suspensions & Colloids · easy · theory
In a suspension, the solid particles slowly ______.
A. turn into gas
B. float and never settle
C. settle down at the bottom ✓ Correct
D. disappear completely
Solution: A suspension has large particles that do not dissolve, so on standing they slowly sink and settle at the bottom.
Q2 — Suspensions & Colloids · easy · theory
Which of these is an example of a suspension?
A. Sugar solution
B. Salt water
C. Distilled water
D. Muddy water ✓ Correct
Solution: In muddy water the mud particles are large, stay undissolved and settle down — that makes it a suspension.
Q3 — Suspensions & Colloids · easy · theory
Which of these is a common example of a colloid?
A. Table salt
B. Oxygen gas
C. Pure water
D. Milk ✓ Correct
Solution: Milk looks cloudy and its tiny particles stay spread out without settling, which makes it a colloid.
Q4 — Suspensions & Colloids · easy · theory
The particles in a suspension are ______.
A. large enough to be seen ✓ Correct
B. always dissolved
C. made of gas only
D. too small to be seen
Solution: Suspension particles are big — often big enough to see — which is why they do not dissolve and can be filtered out.
Q5 — Suspensions & Colloids · medium · theory
If you leave a glass of muddy water still for some time, what happens?
A. The mud dissolves completely
B. The mud settles at the bottom and clearer water is on top ✓ Correct
C. The water turns into ice
D. Nothing at all changes
Solution: Because muddy water is a suspension, the heavy mud particles slowly sink, leaving clearer water above.
Q6 — Suspensions & Colloids · medium · theory
How can you separate the sand from a suspension of sand in water?
A. By evaporating the water only
B. By filtering it ✓ Correct
C. It cannot be separated
D. By cooling it
Solution: The sand particles are large, so they get trapped by filter paper while the water passes through.
Q7 — Suspensions & Colloids · medium · theory
Milk looks white and cloudy and its tiny particles do not settle down. Milk is an example of a ______.
A. pure substance
B. colloid ✓ Correct
C. true solution
D. element
Solution: A colloid has particles bigger than a solution but too small to settle, giving a cloudy look — exactly like milk.
Q8 — Suspensions & Colloids · medium · theory
Which statement is TRUE about a colloid?
A. Its particles quickly settle at the bottom
B. Its particles do not settle down and it looks cloudy ✓ Correct
C. It contains only one kind of atom
D. It is always clear and see-through
Solution: Colloid particles are small enough to stay spread out (they do not settle), but big enough to make the mixture look cloudy.
Q9 — Suspensions & Colloids · hard · theory
Fog is tiny water droplets spread in air, and it scatters the light from a car’s headlights. Fog is an example of a ______.
A. pure substance
B. suspension that settles quickly
C. colloid ✓ Correct
D. true solution
Solution: Fog is a colloid — its tiny droplets stay spread in the air without settling and scatter light, which is why headlights glow in fog.
Q10 — Suspensions & Colloids · hard · theory
Three glasses contain: (1) sugar water — clear, (2) muddy water — particles settle, (3) milk — cloudy, particles do not settle. Which match is correct?
A. 1 suspension, 2 colloid, 3 solution
B. 1 solution, 2 suspension, 3 colloid ✓ Correct
C. 1 solution, 2 colloid, 3 suspension
D. 1 colloid, 2 solution, 3 suspension
Solution: Clear sugar water is a solution, muddy water whose particles settle is a suspension, and cloudy milk whose particles stay spread is a colloid.