Question

ances in any ratio in such a
EXERCISES
6. To remove undesirable components
d. All of the above
e undesirable and harmful substances
4. Multiple Choice Questions:
-e-hand-picking, winnowing, sieving,
1. We need to separate a misture
To remove harmful components
small quantity. It is based on the
2. The method of separating seeds of paddy from their stalks is called
c. To obtain useful components
entation and removal of upper liquid
temperature, but if we increase
erties.
a. Sieving
sieving and filtration.
c. Threshing
3.
a. Sieving
ation.
c. Threshing
a. Magnetic separation
6. Evaporation
Tven temperature.
a. Sedimentation
C. Filtration
onents of a mixture.
B. Winnowing
d. Magnetic separation
is used to separate a mixture of wheat and husk
Winnowing
d. Magnetic separation
4. Salt is obtained from sea water by the process of
h. Sedimentation
d. Decantation
5. impurities settled down at the bottom when muddy water was kept overnight ina bucle: The dear waters
then poured off from the top. Which method of separation is used in this excampie?
b. Decantation
d. Both a b
6. A mixture of mustard oil and water can be separated by
b. Separating funne
d. Evaporation
4. Sublimation
c. Filtration
B. Fill in the blanks:
2. A
ction of wind. Different
eir weights.
particles and allows the
is made up of only one kind of particles while a
to or more components.
is made up of
solution is one in which no more solute can be dissolved
3. The mixture having components of
4. Separating funnel is used to separate two
sizes are separated by the process of sieving
5. The solution in which more solute can still be dissolved is called an
liquias
6. The amount of sugar which can be dissolved in water
with the increase of temperature
C. Alternative Response Type:
State True or False:
1. The heavy solid particles which settle down at the bottom during decantation are called filmate.
2. The material left behind during the process of filtration, is called rasioue.
State Yes or No:
1. Can sand grains be used as a filter?
2. Can two immiscible liquids be separated by filtration?
State Right or wrong:
1. The mixtures having more than two components are separated using more than one memon
Tron filings and saw dust can be separated by magnetic semaration
bstance into its vapour
into its liquid phase is​

Answer 1

Answer:

. To remove undesirable components - seiving

The method of separating seeds of paddy from their stalks is called threshing