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
Solid copper sulphate can be obtained from copper sulphate solution in water by the process of
  • A
    Evaporation
    Correct
  • B
    Sedimentation
  • C
    Centrifugation
  • D
    Filtration
2
When ice cold water is poured in glass, water droplets appear on its outer surface of glass due to
  • A
    Condensation of water vapour
    Correct
  • B
    Seeping of water through wall of glass
  • C
    Filtration of water through glass
  • D
    Evaporation of water from the glass
3
Which of the following water will dissolve more sugar
  • A
    Water at low temperature
  • B
    Ice cold water
  • C
    Water at high temperature
    Correct
  • D
    Water at medium temperature
4
The process of settling of heavier particles is called
  • A
    Condensation
  • B
    Decantation
  • C
    Sedimentation
    Correct
  • D
    Centrifugation
5
Which of the following is essential for performing winnowing activities?
  • A
    Soil
  • B
    Wind
    Correct
  • C
    Water
  • D
    All of these
6
Hand picking method is effective in
  • A
    Solid materials
    Correct
  • B
    Gaseous substance
  • C
    Solid and liquid both
  • D
    Liquid materials
7
Mixture of water and kerosene oil is separated by the process of
  • A
    Filtration
  • B
    Sublimation
  • C
    Sieving
  • D
    Separating funnel
    Correct
8
Which of the following is a sublime substance?
  • A
    Copper sulphate
  • B
    Ammonium sulphate
  • C
    Camphor
    Correct
  • D
    Common salt
9
The spinner in washing machine works on the principle of
  • A
    Decantation
  • B
    Evaporation
  • C
    Filtration
  • D
    Centrifugation
    Correct
10
The process in solid substance directly get converted into gaseous state is called
  • A
    Boiling
  • B
    Sublimation
    Correct
  • C
    Melting
  • D
    Evaporation
11
Combine is used for
  • A
    Harvesting and storing
  • B
    Threshing and winnowing
  • C
    Threshing and sedimentation
  • D
    Harvesting and threshing
    Correct
12
Petrol, kerosene and other petroleum products are separated by
  • A
    Decantation
  • B
    Simple distillation
  • C
    Condensation
  • D
    Fractional distillation
    Correct
13
Water is a
  • A
    Compound
    Correct
  • B
    Element
  • C
    Molecule
  • D
    Mixture
14
Composition of air varies from place to place, so air is a
  • A
    Solute
  • B
    Mixture
    Correct
  • C
    Compound
  • D
    Solvent
15
Solubility of water increase with increase in
  • A
    Direction
  • B
    Pressure
  • C
    Altitude
  • D
    Temperature
    Correct