Chemical Reactions And Equation Class 10th

10 Questions | Total Attempts: 44

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Chemical Reactions And Equation Class 10th

Chemical reactions and equation


Questions and Answers
  • 1. 
    Reaction with copper sulphate solution with iron is example of
    • A. 

      Displacement reaction 

    • B. 

      Double displacement reaction 

    • C. 

      Combination reactions 

    • D. 

      Decomposition reaction 

  • 2. 
    What will be the colour of silver chloride powder is kept in the sunlight 
    • A. 

      Green 

    • B. 

      Grey

    • C. 

      Yellow 

    • D. 

      Black 

  • 3. 
    Reaction with quick lime and water is an example of 
    • A. 

      Endothermic 

    • B. 

      Displacement 

    • C. 

      Exothermic 

    • D. 

      Photolytic

  • 4. 
    Name the gas evolved when ferrous sulphate crystals is heated
    • A. 

      Oxygen 

    • B. 

      Nitrogen 

    • C. 

      Nitrogen dioxide 

    • D. 

      Sulphur  dioxide 

  • 5. 
    Respiration is an example of 
  • 6. 
    Name the gas evolved in this figure 
    • A. 

      Nitrogen dioxide 

    • B. 

      Nitrogen oxide 

    • C. 

      Nitrogen 

    • D. 

      Ammonia 

  • 7. 
    What is the ratio of volume of hydrogen gas to the volume of oxygen gas during electrolysis of water
    • A. 

      1:2

    • B. 

      2:3

    • C. 

      2:1

    • D. 

      3:2

  • 8. 
    Here two solutions barium chloride and sodium sulphate is mixed together, white insoluble substances obtained in this fig. Identify the type of reaction 
    • A. 

      Displacement reaction 

    • B. 

      Double displacement reaction 

    • C. 

      Combination reactions 

    • D. 

      Decomposition reaction 

  • 9. 
    Burning of magnesium ribbon is an example of
    • A. 

      Oxidation 

    • B. 

      Reduction 

    • C. 

      Thermal decomposition reaction 

    • D. 

      Displacement reaction 

  • 10. 
    Oily contains food such as potato chips is flushed with nitrogen in packet to prevent 
    • A. 

      Reduction 

    • B. 

      Photolytic reaction 

    • C. 

      Rancidity

    • D. 

      None of these 

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