Separation of Substances
(MCQs)
Q1: The process of settling down of particles of a solid in a liquid is known as
(a) sublimation
(b) sedimentation
(c) decantation
(d) precipitation
Q2: Which of the following is essential to perform winnowing activity?
(a) soil
(b) water
(c) wind
(d) none of these
Q3: Hand picking method is effective in
(a) gaseous mixture
(b) solid mixture
(c) liquid mixture
(d) none of these