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NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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Hard
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Understanding
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Assertion: All the ores are mineral
Reason: Ores contains metals in combined state
Reason: Ores contains metals in combined state
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Correct option: B
If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion
Option B is correct because while both the assertion and the reason are true, the reason does not explain why all ores are minerals; it explains why ores contain metals.
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Assertion (A): Wolframite impurities are separated from cassiterite by electromagnetic separation.
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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: