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Physical and Chemical Changes Test - 4

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Physical and Chemical Changes Test - 4
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following experimental setups is correct to test carbon dioxide gas?
  • Question 2
    1 / -0
    What is the technical term for each of the following interconversions of the states of matter?
    (i) Change from liquid to solid
    (ii) Change from liquid to gas
  • Question 3
    1 / -0
    Identify the substance 'X' in the reaction given below:

    CO2 + 'X'  CaCO3 + H2O
  • Question 4
    1 / -0
    Addition of which of the following substances to water will bring about a chemical change? 
  • Question 5
    1 / -0
    What is the chemical name of rust?
  • Question 6
    1 / -0
    After burning a magnesium ribbon, Payal collected the ash produced and dissolved it in water. Which substance is formed and what is its nature?
  • Question 7
    1 / -0
    Which of the following options is not an example of physical change? 
  • Question 8
    1 / -0
    Crystallisation is an example of _______ .
  • Question 9
    1 / -0
    Which of the following activities does not result in a chemical change? 
  • Question 10
    1 / -0
    Which among the following is a method used to prevent the rusting of iron pipes?
  • Question 11
    1 / -0
    Which of the following is not the correct precaution to be taken while preparing crystals of copper sulphate?
  • Question 12
    1 / -0
    Mg + 'x' à MgO  
    What is the physical state of the substance 'x' in the above reaction?
  • Question 13
    1 / -0
    Which of the following relations is incorrect?
  • Question 14
    1 / -0
    Which process forms a brownish layer on the exposed surface of iron materials?
  • Question 15
    1 / -0
    When magnesium ribbon is burnt, heat and light are produced. It is an example of which type of change?
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