ICSE Class 6 Chemistry Important Questions

Chemistry plays an important role in meeting human needs for food, health care products and other materials aimed at improving the quality of life. This is exemplified by the large scale production of a variety of fertilizers, improved varieties of pesticides and insecticides. Learning chemistry is mandatory now as it constitutes to be an important subject in higher classes. ICSE Class 6 Chemistry Important Questions help you refresh all the important topics you have learnt in class 6.

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The Important Questions of ICSE Class 6 Chemistry are given below:

  1. Choose the correct answer out of the four available choices given under each question.
    1. A glass tube made of pyrex is called a
      1. Heating tube
      2. Boiling tube
      3. Melting tube
      4. Cracking tube
    2. Frost is the ___________ state of water.
      1. Solid
      2. Liquid
      3. Gas
      4. Vapour
    3. Which of the following is a good conductor of heat?
      1. Wood
      2. Rubber
      3. Cotton
      4. Copper
  2. Define Valency.
  3. Fill in the blanks and rewrite the sentences:
    1. A molecule of nitrogen consists of __________atoms of element nitrogen only.
    2. A compound is formed by a combination of at least _____elements.
    3. In solids, the molecules are__________.
    4. retain their shape.
    5. Water is_____________
  4. Define Diatomic molecule
  5. State a method to separate the following mixtures:
    1. Separating stone particles from wheat grains
    2. Separating heterogeneous solid-liquid mixtures
    3. Separating saw dust from water
    4. Separating a mixture of oil and water
    5. Separating cream from milk
  6. Define Weathering.
  7. Write a note on the water cycle. Explain it with the help of a diagram.
  8. Define Condensation.
  9. Give the principle of sublimation with an example.
  10. Distinguish between element and compound.
  11. Define Intermolecular force.
  12. Distinguish between physical and chemical changes.
  13. State which of the following statements are false. Rewrite the correct statements, if false:
    1. Air is all around.
    2. Air cannot be compressed.
    3. Nitrogen is the major component of air
    4. Aquatic animals do not breathe the air dissolve in water.
    5. All living organisms breathe air to remain alive.
  14. Match the important chemical compounds in Column A with its uses in column B.
    Column A Column B
    1. Fertilisers 1. help in killing weeds which grows along with the crops
    2. Insecticides 2. help in killing pests like rats, snakes etc. which destroys the crop
    3. Fungicides 3. help in improving soil’s fertility
    4. Herbicides 4. help in destroying fungi that destroy crops
    5. Pesticide 5. help in killing insects that infect and destroys crops
  15. Describe a burette, wire-gauze and test tube. Give their uses.
  16. Write the techniques used for separating the following mixtures:
    1. Husk and wheat
    2. Pebbles from pulses
    3. Pure copper sulphate from impurities
    4. Sugar from sugar solution
    5. Pure water from impure water
  17. Write a note on the structure of an atom.
  18. Nitrogen present in the air is essential for the growth and development of plants. Give reason.
  19. State the characteristics of states of matter.
  20. Explain the working of sublimation.

Practise This Question

The mixture of dry leaves and sand can be separated using threshing.