On Line Test For Class 7 Chemistry

11 Questions | Total Attempts: 72

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On Line Test For Class 7 Chemistry

Class 7 Chemistry


Questions and Answers
  • 1. 
    Which property of matter you can show by this experiment?
  • 2. 
    What is the other name of condensation?
    • A. 

      Sublimation

    • B. 

      Deposition

    • C. 

      Liquefaction

    • D. 

      Crystallization

  • 3. 
    Which type of change is sublimation of ammonium chloride?
    • A. 

      Physical change

    • B. 

      Chemical change

    • C. 

      Both 1 and 2

    • D. 

      None of these

  • 4. 
    The gas release when we heat lead dioxide
    • A. 

      Nitrogen

    • B. 

      Oxygen

    • C. 

      Carbon-dioxide

    • D. 

      Chlorine

  • 5. 
    The state of matter which can be compressed easily
    • A. 

      Solid

    • B. 

      Liquid

    • C. 

      Gas

    • D. 

      None of these

  • 6. 
    Tearing of paper is a 
    • A. 

      Physical and reversible change

    • B. 

      Physical and irreversible change

    • C. 

      Physical and desirable change

    • D. 

      Physical and undesirable change

  • 7. 
    Ammonium Chloride , a sublime solid undergoes[Blank] on heating.
  • 8. 
    During a chemical change the [Blank] of the original substance is not altered.
  • 9. 
    Separation of naphthalene from a mixture of naphthalene and sodium chloride is a[Blank]
  • 10. 
    The aroma of boiling milk can be felt from outside due to[Blank]
  • 11. 
    The density of [Blank] as a liquid is more than iron.
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