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Metals and Non-...

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  • Question 1
    1 / -0

    Which of the following reactants will react with each other to undergo a displacement reaction?

  • Question 2
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    A piece of aluminium foil is dropped in an aqueous solution of NaOH. The gas released during the reaction gives a pop sound, when a burning matchstick is brought near to it. Which of the following gases is released during the reaction?

  • Question 3
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    Powdered sulphur is heated. It is introduced into a glass jar and covered with a lid. Now, water is added into the jar, lid is placed again and then is shaken well. When a blue litmus is introduced into this jar, it turns red. Which of the following is present inside the jar?

  • Question 4
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    Why do gold ornaments generally not lose their lustre even after a long time of usage?

  • Question 5
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    Which of the following statements is not correct?

  • Question 6
    1 / -0

    Food cans are coated with tin and not with zinc because

  • Question 7
    1 / -0

    Metals are malleable because

  • Question 8
    1 / -0

    Match the following:

    Column A Column B
    (a) Bromine i. Brittle
    (b) Mercury ii. Non-metallic conductor
    (c) Graphite iii. Non-metallic liquid
    (d) Zinc iv. Metallic liquid

  • Question 9
    1 / -0

    Which of the following statements is not true about metals?

  • Question 10
    1 / -0

    ________ is a non-metal that all living beings need for respiration.

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