MCQs-Methods of Separation in Everyday Life-Class 6-Science

Multiple Choice Questions

Methods of Separation in Everyday Life

Class-6
Subject-Science

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Which method is used to remove pebbles from rice?
a) Filtration
b) Handpicking
c) Decantation
d) Sieving
Answer: b) Handpicking
The method of separating grains from stalks by beating is called:
a) Winnowing
b) Threshing
c) Sieving
d) Filtration
Answer: b) Threshing
Which of these separation methods uses wind or air?
a) Handpicking
b) Winnowing
c) Sieving
d) Magnetic separation
Answer: b) Winnowing
Which process is used to remove husk from wheat using air?
a) Winnowing
b) Sedimentation
c) Sieving
d) Filtration
Answer: a) Winnowing
Sieving is used to separate:
a) Tea leaves from tea
b) Sand from stones
c) Salt from saltwater
d) Cream from milk
Answer: b) Sand from stones
Which of these is an example of sedimentation?
a) Sand settling at the bottom of a glass of water
b) Removing stones from rice
c) Separating oil from water
d) Separating salt from seawater
Answer: a) Sand settling at the bottom of a glass of water
Which method is used to separate tea leaves from tea?
a) Winnowing
b) Filtration
c) Sieving
d) Magnetic separation
Answer: b) Filtration
What method is used to obtain salt from seawater?
a) Sedimentation
b) Filtration
c) Evaporation
d) Sieving
Answer: c) Evaporation
The process in which heavier components settle at the bottom is called:
a) Filtration
b) Decantation
c) Sedimentation
d) Winnowing
Answer: c) Sedimentation
What is decantation used for?
a) Separating solids from liquids
b) Separating liquids of different densities
c) Separating gases
d) Separating sand from stones
Answer: b) Separating liquids of different densities
Which method is used to separate butter from buttermilk?
a) Churning
b) Winnowing
c) Handpicking
d) Filtration
Answer: a) Churning
Which separation technique is used to separate iron nails from sand?
a) Filtration
b) Handpicking
c) Magnetic separation
d) Winnowing
Answer: c) Magnetic separation
Which method is used to separate a mixture of flour and small bran particles?
a) Sieving
b) Filtration
c) Sedimentation
d) Decantation
Answer: a) Sieving
Which method is used for separating water and oil?
a) Filtration
b) Decantation
c) Winnowing
d) Sieving
Answer: b) Decantation
Which of the following is NOT a method of separation?
a) Handpicking
b) Winnowing
c) Cooking
d) Filtration
Answer: c) Cooking
What is the function of a sieve?
a) To separate solid and liquid
b) To separate solid particles of different sizes
c) To dissolve solid in water
d) To remove gases from liquids
Answer: b) To separate solid particles of different sizes
Which method is used in washing pulses before cooking?
a) Filtration
b) Sedimentation and decantation
c) Winnowing
d) Magnetic separation
Answer: b) Sedimentation and decantation
Which separation method is used in tea bags?
a) Sedimentation
b) Filtration
c) Handpicking
d) Winnowing
Answer: b) Filtration
Which of the following is an example of a mixture?
a) Salt
b) Water
c) Sand and salt
d) Iron
Answer: c) Sand and salt
Which property is used in winnowing?
a) Size
b) Weight
c) Color
d) Shape
Answer: b) Weight

True or False

Filtration can be used to separate salt from water. (False)
Handpicking is useful when the quantity of impurities is small. (True)
Magnetic separation is used to remove husk from grains. (False)
Sieving is used to separate particles based on size. (True)
Churning is used to separate oil from water. (False)
Winnowing is useful for separating heavier grains from lighter husk. (True)
Decantation can be used to separate immiscible liquids like oil and water. (True)
Sedimentation helps to settle heavier particles in a liquid. (True)
Evaporation is used to separate iron filings from sand. (False)
A magnet can be used to separate a mixture of iron and sulfur. (True)

Assertion and Reasoning Questions

Assertion (A): Filtration can be used to separate tea leaves from tea.
Reason (R): A filter allows only the liquid to pass while trapping the tea leaves.
Answer: (Both A and R are true, and R explains A.)
Assertion (A): Sieving can be used to separate salt from saltwater.
Reason (R): Sieving is based on particle size differences.
Answer: (A is false, but R is true.)
Assertion (A): Magnetic separation is used in recycling industries.
Reason (R): Magnets attract non-magnetic materials.
Answer: (A is true, but R is false.)
Assertion (A): Winnowing is used to separate grains from husk.
Reason (R): Lighter husk is carried away by wind, while heavier grains fall straight.
Answer: (Both A and R are true, and R explains A.)
Assertion (A): Evaporation is the best method to separate sand from water.
Reason (R): Evaporation removes only dissolved substances.
Answer: (A is false, but R is true.)

5 Match the Following with Answers:

Column I	Column II
Grains and husk	Winnowing
Cream from milk	Churning
Salt from seawater	Evaporation
Iron nails and sawdust	Magnetic separation
Sand and stones	Sieving