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NEET UG CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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Aluminothermic process is used for the extraction of metals, whose oxides are:
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Correct option: B
Not easily reduced by carbon
Option B (Not easily reduced by carbon) is correct because the aluminothermic process uses aluminum to reduce oxides that are more stable and difficult to reduce with carbon.
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Mac Arthur and Forest cyanide process is used in the extraction of:
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? In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction: Silver containing lead as impurity is purified by
Reason (R): Cassiterite being magnetic is attracted by the magnet and forms a separate heap. Which one is an ore of sodium? In the extraction of copper, the metal formed in the Bessemer’s converter is due to the reaction: Silver containing lead as impurity is purified by