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NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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Medium
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Analyzing
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Assertion : Extraction of ir on metal from iron oxide ore is carried out by heating with coke.
Reason : The reaction,
is a spontaneous process.
Reason : The reaction,
is a spontaneous process.
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Correct option: C
If the Assertion is correct but Reason is incorrect.
Option C is correct because the extraction of iron involves heating with coke, which is true, but the given reaction is not spontaneous.
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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: