Question

Four samples are prepared by adding:
A. a pinch of copper sulphate to water
B. a spatula of copper sulphate to water
C. a spatula of chalk powder to water
D. milk to water
Which among these is not a suspension?

• A. C
• B. D
• C. B
• D. A

Answer 1

Answer: (B), (C), (D)

The correct options are
B

D

C

B

D

A

A suspension is defined as a heterogeneous mixture of particles with a diameter greater than 1000 nm such that the particles are visible to naked eyes. If a suspension is left undisturbed, the particles are likely to settle to the bottom. The particles in a suspension are larger than those in either a colloid or a solution. Chalk water is an example of a suspension.