Question

4. Name the process associated with the following: [3 Marks]
(a) a drop of ink placed on the surface of water in a glass spreads throughout the glass
(b) an acetone bottle left open, becomes empty after sometime
(c) milk is churned to separate cream from it
(d) settling of sand when a mixture of sand and water is left undisturbed for sometime
(e) fine beam of light entering through a small hole in a dark room, illuminates the particles in its path
(f) naphthalene balls disappear with time

Answer 1

a) Diffusion

b) Evaporation

c)  Centrifugation

d) Sedimentation

e) Tyndall Effect

f) Sublimation

Answer 2

Answer:

Explanation:

a) volatility

b)evaporation

c) separation by density

d) it is a suspension solution

e) tyndall effect

f) volatile component gets evaporated over time