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  • Question 1
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    Sketch shown is of an electrolytic cell used in the extraction of aluminium:

    What is the substance of which the electrode A is made?

  • Question 2
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    The composition of thermite mixture is

  • Question 3
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    Directions For Questions

    A to F below relate to the source and extraction of either Zinc or Aluminium.
    A: Bauxite, B: Coke, C: Cryolite, D: Froth floatation, E: Sodium hydroxide solution, F: Zinc blende.

    ...view full instructions

    Which one is  make a conducting solution?

  • Question 4
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    Sulphur molecule exists as :

  • Question 5
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    The following question is relevant to the extraction of Aluminium:
    Along with cryolite and alumina, another substance is added to the electrolyte mixture. the substance is ___________.

  • Question 6
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    In the upper region of blast furnace the gas helps in the reduction of iron oxide to iron is:

  • Question 7
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    A compound added to lower the fusion temperature of the electrolytic bath in the extraction of Al is ___________.

  • Question 8
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    Transmission wires are made of aluminium, since aluminium is:

  • Question 9
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    If impurities can be oxidized more easily than the metal itself, which method is used?

  • Question 10
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    Which metal is used for making foils used in packing of food materials?

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