ICSE Class 7 Chemistry Important Questions

Chemistry plays a significant role in meeting human wants for different materials geared toward raising the standard of life. This can be explained by the massive scale production of a spread of fertilisers and improved sorts of pesticides and pesticides. Learning chemistry is obligatory currently because it constitutes to be a critical subject in higher classes. Students can refresh all the essential topics by going through the ICSE Class 7 Important Questions of Chemistry.

These important questions help students to get familiar with the important concepts that need to be focused more on each chapter. Students should solve the Chemistry important questions so that they get an idea of where they stand in terms of preparation. The important questions are framed as per the ICSE exam pattern after analyzing the previous year exam trends and types of questions asked. It is prepared by the subject experts by referring to the ICSE Class 7 Chemistry syllabus as prescribed by the Board.

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The Important Questions of ICSE Class 7 Chemistry are given below for the students to practice once they are done revising the syllabus of Biology.

  1. Choose the correct answer out of the four available choices given below each question.
    1. The____________ substances do not have their own definite shape and volume.
      1. Crystal
      2. Solid
      3. Liquid
      4. Gaseous
    2. Metals react with dilute acids to liberate __________ gas.
      1. Sulphur
      2. Oxygen
      3. Hydrogen
      4. Chlorine
    3. A solution which cannot dissolve more solute at a given temperature is called_____.
      1. Unsaturated solution
      2. Saturated solution
      3. True solution
      4. Colloid solution
  2. Give the chemical formula for the following:
    1. Caustic soda
    2. Nitric acid
    3. Lead nitrate
    4. Blue vitriol
    5. Vinegar
  3. Fill in the blanks and rewrite the sentences:
    1. Manganese dioxide acts as a _____ during the formation of oxygen.
    2. On burning a candle, _____ and ______ are formed.
    3. When ammonium chloride is dissolved in water, heat is ______.
    4. A sublimable solid on heating turns into ______.
    5. Adding salt to water increases the ______ point of water.
  4. State whether True or False.
    1. Marble is hydrated calcium sulphate.
    2. Oxygen burns in an atmosphere of acetylene producing very high temperatures, which are used for welding and cutting metals.
    3. Metals occur in nature in both free and combined states.
    4. Rusting is a slow oxidation process in which iron slowly reacts with the oxygen of the air in the presence of moisture.
    5. Water freezing into ice is an example of chemical change.
  5. Match the following:
    Solid ‘X’ to Liquid ‘Y’ Liquefaction
    Liquid ‘X’ to its vapours ‘Z’ Solidification
    ‘Z’ to ‘X’ Melting
    ‘Y’ to ‘X’ Boiling point
    The temperature at which ‘Y ‘changes to ‘Z’ Vaporisation
  6. Write the valency and the symbols for the following elements:
    1. Oxygen
    2. Sulphur
    3. Bromine
    4. Chlorine
    5. Carbon
  7. Give the chemical name for the following:
    1. NaOH
    2. KOH
    3. NaHCO3
    4. CaO
    5. H3PO4
  8. Addition of curd to milk is a chemical change. Why?
  9. Explain why the Burning of sulphur powder is a chemical change.
  10. Explain the term catalyst and its types.
  11. Define Chemical equation.
  12. What are Reactants?
  13. What is meant by Products?
  14. Write a short note on a balanced equation.
  15. Explain Catalyst.
  16. Compare in tabular form properties of Solids, Liquids and Gases with respect to :
    1. Shape
    2. Volume
    3. Compressibility
    4. Diffusion
    5. Fluidity or Rigidity
  17. Define mixture.
  18. Explain the term atomicity in detail.
  19. Give the differences between elements and compounds.
  20. What are the different types of the mixture?

Benefits of Solving ICSE Class 7 Chemistry Important Questions

  • It boosts the student’s confidence while writing the Chemistry question paper.
  • ICSE Important Questions covers all the important concepts and the entire Chemistry syllabus.
  • Students can get to know the importance of each chapter.
  • It is the best study material for revision purposes in less duration of time.


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  1. Thank you byjus for helping me to get a good score in my exams