Question

Chapter Based Practice Paper
con difere
En, evapor
A MULTIPLE CHOICE TYPE QUESTIONS : TICK
1. The components of a mixture are separated
THE CORRECT ANSWER
(a) to remove harmful components
(c) to obtain pure sample of a substance
(b) to remove undesirable components
(d) all of the above
2. A mixture of oil and water can be separated by
(a) filtration
(b) decantation
(c) evaporation
(d) churning
8. FILL IN THE BLANKS TYPE QUESTIONS
1. Pond water is a
mixture.
2. The constituents of a mixture are separated to obtain
constituents.
3. Sedimentation can be made quicker by adding
into it.
4. A filter paper is used for separating
solid particles from a
5. A mixture of two immiscible liquids can be separated by
C. TRUE OR FALSE TYPE QUESTIONS
1. All mixtures are heterogeneous.
2. The boiling point of a pure substance does not get affected when an impurity is added to it.
3. Common salt obtained from sea water contains many impurities,
4. Quickening of sedimentation of clay particles by adding a small quantity of alum to the muddy water is
called loading.
5. Churning is used for obtaining butter from curd.
SAND QUIZ​

Answer 1

Answer:

A 1)all of the above

2)filteration

B 1.homogeneous

2.pure

3.alum

4.liquid

5.fractional distillation

C 1.false

2.true

3.true

4.true

5.false