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General Principles and Processes of Isolation of Elements Test - 4

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General Principles and Processes of Isolation of Elements Test - 4
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  • Question 1
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    In the electrolytic method for obtaining aluminium from purified bauxite, cryolite is added to
  • Question 2
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    During the process of electrolytic refining of copper, some metals present as impurity settle as 'anode mud'. These are
  • Question 3
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    Refining of impure copper with zinc impurity is to be done by electrolysis using electrodes as
  • Question 4
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    In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents used are
  • Question 5
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    Impurities of Cu and Ag from gold are removed by
  • Question 6
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    Identify the reaction that does not take place in a blast furnace.
  • Question 7
    4 / -1
    Metallic silver may be obtained from AgCl by
  • Question 8
    4 / -1
    During the extraction of copper, the impurity (FeS) is removed as slag by mixing the contaminated copper ore with silica and coke. The molecular formula of slag is
    Solution

  • Question 9
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    Identify the reaction that does not take place during the smelting process of extraction.
  • Question 10
    4 / -1
    Electrochemical process (electrolysis of fused salt) is employed to extract
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