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
The method of separation used to separate stone from rice is
  • A
    Filtration
  • B
    Winnowing
  • C
    Hand picking
    Correct
  • D
    Threshing
2
The separation of grains from husk in done by the process of
  • A
    Sieving
  • B
    Hand picking
  • C
    Winnowing
    Correct
  • D
    Threshing
3
Chalk powder suspension in water can be separated by
  • A
    Decantation
  • B
    Filtration
    Correct
  • C
    Condensation
  • D
    Evaporation
4
A solution of salt is a
  • A
    Heterogeneous solution
    Correct
  • B
    Homogeneous solution
  • C
    Element
  • D
    Compound
5
The properties used to separate two solids from a mixture by winnowing is
  • A
    Attraction by magnet.
  • B
    Difference in size
  • C
    Difference is colour
  • D
    Difference in weight
    Correct
6
Most of the substance that see around us are
  • A
    Element
  • B
    Compound
  • C
    Mixture
    Correct
  • D
    Pure solution
7
Which of the following dissolve in water?
  • A
    Only liquid
  • B
    Only gases
  • C
    Only solid
  • D
    Solid, liquid and gases
    Correct
8
The dust particles in the water can be helped to settle down faster by using
  • A
    Alcohol
  • B
    Common salt
  • C
    Alum
    Correct
  • D
    Sugar
9
The process by which the unwanted solid particles are removed from the liquid is called
  • A
    Loading
  • B
    Filtration
    Correct
  • C
    Sedimentation
  • D
    Decantation
10
Boiling point of pure water is
  • A
    100\(^0{\text{C}}\)
    Correct
  • B
    90\(^0{\text{C}}\)
  • C
    110\(^0{\text{C}}\)
  • D
    80\(^0{\text{C}}\)
11
Common salt is obtained from sea water by
  • A
    Evaporation
    Correct
  • B
    centrifugation
  • C
    Sieving
  • D
    Condensation
12
The pure substance have fixed
  • A
    Melting point only
  • B
    Boiling point only
  • C
    Neither boiling nor boiling point
  • D
    Both melting and boiling point
    Correct
13
Butter is separated from curd by
  • A
    Heating
  • B
    Churning
    Correct
  • C
    Filtration
  • D
    Evaporation
14
On heating, which one expands maximum?
  • A
    Semi-solids
  • B
    Liquids
  • C
    Gases
    Correct
  • D
    Solids
15
Cleaning of flour is done by the process of
  • A
    Sieving
    Correct
  • B
    Filtration
  • C
    Decantation
  • D
    Winnowing