Class 6 Separation Of Substances CBSE Questions & Answers

Class 6 · Separation Of Substances

This is Science Class 6 Separation of Substances CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Distillation is the process based on the principle of difference in
  • A
    Melting point
  • B
    Sublimation
  • C
    Boiling point
    Correct
  • D
    Freezing point
2
Which of the following can not be separated by hand-picking?
  • A
    Mango from apples
  • B
    Note-book from book
  • C
    Pebbles from rice
  • D
    Salts from sand
    Correct
3
The method of separation used to separate stone from rice is
  • A
    Filtration
  • B
    Hand picking
    Correct
  • C
    Threshing
  • D
    Winnowing
4
The machine used for harvesting and threshing both is called Combine
  • A
    Remover
  • B
    Thresher
  • C
    Penetrator
  • D
    harvester
    Correct
5
Winnowing separates the
  • A
    Husk from seed
    Correct
  • B
    Milk from cream
  • C
    Salt from water
  • D
    Stone from rice
6
Sieving is possible only when particles of mixture are of
  • A
    Small size
  • B
    Different size
  • C
    Same size
    Correct
  • D
    Large size
7
Separating funnel is used to
  • A
    Separating two miscible liquids
  • B
    Separating two gases
  • C
    Separate two immiscible liquids
    Correct
  • D
    Separating two mixture
8
The unwanted particles present in the substance is called
  • A
    Hand picking
  • B
    Substance
  • C
    Purities
  • D
    Impurities
    Correct
9
Hand picking method is used for separating
  • A
    Water from water vapour
  • B
    Grain from stalk
  • C
    Heavy particles at the bottom
  • D
    Husk or dust particles
    Correct
10
The process used for separating grain from stalk is
  • A
    Harvesting
  • B
    Filtration
  • C
    Threshing
    Correct
  • D
    Winnowing
11
Sieve is used for removing
  • A
    Smaller particles from larger
    Correct
  • B
    Cream from milk
  • C
    Salt from water
  • D
    Oil from water
12
Winnowing is used to separate
  • A
    Husk from seed
    Correct
  • B
    Grain from stalk
  • C
    Seed coat from seed
  • D
    All of these
13
The mixture of water and oil can be separated by
  • A
    Filtration
  • B
    Decantation
    Correct
  • C
    Sedimentation
  • D
    Magnetic separation
14
When muddy water is kept overnight in a bucket the impurities
  • A
    Remain suspended
  • B
    Float in the middle
  • C
    Settle at the bottom
    Correct
  • D
    Floats on the top
15
The process of separating tea from leaves is an example of
  • A
    Churning
  • B
    Evaporation
  • C
    Condensation
  • D
    Filtration
    Correct