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Chemical Reactions Test - 2

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Chemical Reactions Test - 2
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Weekly Quiz Competition
  • Question 1
    1 / -0

    What is the other name of baking soda?

  • Question 2
    1 / -0

    Which type of change takes place during the formation of curd from milk?

  • Question 3
    1 / -0

    Which of the following is a decomposition reaction?

  • Question 4
    1 / -0

    How many atoms of copper should be added in the products to balance the given chemical equation?

    2Fe + 2CuSO4 → 2FeSO4 + Cu

  • Question 5
    1 / -0

    In which form is copper element obtained in the given reaction?

    Pb(s) + CuCl2(aq) → PbCl2 (aq) + Cu(s)

  • Question 6
    1 / -0

    Which law justifies a balanced chemical equation?

  • Question 7
    1 / -0

    Why does an iron container turn reddish brown when exposed to moisture for long period of time?

  • Question 8
    1 / -0

    Which of the following gases is used to fill in the bags of potato chips to prevent oxidation?

    Solution

    When potato chips are surrounded by an unreactive gas such as nitrogen, there is no oxygen to cause their oxidation and make them rancid.

     

  • Question 9
    1 / -0

    Which of the following food materials does not become rancid?

  • Question 10
    1 / -0

    Which of the following metals does not undergo corrosion?

    Solution

    Gold does not undergo corrosion as it is a non-reactive metal.

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