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NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:
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Correct option: C
Copper(I) sulphide
Option C (Copper(I) sulphide ) is correct because the final step in copper extraction from sulfide ores involves the reduction of cuprous oxide () by cuprous sulfide ().
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Which form of iron has lowest percentage of carbon?
Assertion (A): Wolframite impurities are separated from cassiterite by electromagnetic separation.
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? Aluminothermic process is used for the extraction of metals, whose oxides are: In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction:
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? Aluminothermic process is used for the extraction of metals, whose oxides are: In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction: