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Pure And Impure Matter Test - 2

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Pure And Impure Matter Test - 2
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Which of the following can be separated by the methods of sedimentation and decantation?

    Solution

    Mixture of sand and water can be separated by the methods of sedimentation and decantation.

     

  • Question 2
    1 / -0

    By which method can you separate a mixture of NaCl and water?

    Solution

    Mixture of NaCl and water can be separated by distillation as distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation.

     

  • Question 3
    1 / -0

    A compound is made up of elements X and Y. The equivalent weight of X is one-fourth its atomic weight and the equivalent weight of Y is half its atomic weight. Therefore, the formula of the compound is

    Solution

    A compound is made of elements X and Y. The equivalent weight of X is one-fourth its atomic weight and the equivalent weight of Y is half its atomic weight. Therefore, the formula of the compound is XY2.

     

  • Question 4
    1 / -0

    Chemical formula for water glass is

    Solution

    Chemical formula for water glass is Na2SiO3.

     

  • Question 5
    1 / -0

    Dead burnt plaster is

    Solution

    Dead burnt plaster is CaSO4.

  • Question 6
    1 / -0

    Which of the following is the formula for ferric sulphate?

    Solution

    The formula for ferric sulphate is Fe2(SO4)3.

  • Question 7
    1 / -0

    The formula for aluminium chloride is AlaClb, where a and b have the values

    Solution

    In the formula for aluminium chloride AlaClb, the respective values of a and b are 1 and 3 (i.e. AlCl3).

     

  • Question 8
    1 / -0

    When iron filings are heated in a steam of dry hydrogen chloride, the compound formed is FeClx, where 'x' is

    Solution

    When iron filings are heated in a steam of dry hydrogen chloride, the compound formed is FeCl2.

     

  • Question 9
    1 / -0

    Chemical name of 'Blue Vitriol' is

    Solution

    Chemical name of 'blue vitriol' is copper sulphate.

  • Question 10
    1 / -0

    What is the molecular formula of glucose?

    Solution

    The molecular formula of glucose is C6H12O6.

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