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P - Block Eleme...

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  • Question 1
    4 / -1

    Aluminium is obtained by

  • Question 2
    4 / -1

    Alums are used for

  • Question 3
    4 / -1

    BCl3 + H2O → X, the products formed in the reaction are

  • Question 4
    4 / -1

    The mass of carbon anode consumed (giving only carbon dioxide) in production of 270 kg of aluminium metal from bauxite by the Hall process is
    (Atomic mass of Al = 27)

  • Question 5
    4 / -1

    Which one of the following compounds, is not a protonic acid ?

  • Question 6
    4 / -1

    The structure of diborane (B2H6) contains

  • Question 7
    4 / -1

    Purification of alumina takes place by

  • Question 8
    4 / -1

    The chief impurity present in red bauxite is

  • Question 9
    4 / -1

    An element `X ' which occurs in the first short period has an outer electronic structure s 2 p 1 . What is the formula and acid-base character of its oxides?

  • Question 10
    4 / -1

    Aluminium Chloride exists as dimer, Al2 Cl6 in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

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