Question

Which of the following is het
erogeneous mixture?
(a) Solution of a solid in a lie
(b) Solution of a solid in anot
solid
(c) Mixture of a gas in a liquid
(d) Mixture of a solid in another
solid
2. Alum is used for making fine
clay particles in water to set-
tle down faster. This process is
known as:
(a) filtration
(6) sedimentation
(c) loading
(d) crystallisation​

Answer 1

Answer:

• Mixture of solid into another solid.
• crystallisation