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General Principles and Processes of Isolation of Elements Test - 9

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General Principles and Processes of Isolation of Elements Test - 9
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    When an aqueous solution of sodium chloride is electrolysed using platinum electrodes, the ions discharged at the electrodes are
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    Cassiterite is an ore of
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    Which of the following element is extracted commercially by the electrolysis of an aqueous solution of its compound?
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    Galena is an ore of
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    Which of the following metal is leached by cyanide process?
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    The common method of extraction of metals from oxide ores is
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    Which one of the following ores is not concentrated by froth floatation process?
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    The method of zone refining of metals is based on the principle of
  • Question 9
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    In the extraction of copper from its sulphide ore, the metal is formed by reduction of Cu2O with
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  • Question 10
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    In presence of oxygen, removal of sulphur from an ore is included in
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