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JEE Main 2012 Chemistry question

ChemistryGeneral Principles and Processes of Isolation of Elements (Metallurgy)JEE Main 2012

Not in JEE Main or NEET syllabus

Which of the oxide groups among the following cannot be reduced by carbon?

Answer: (2)

Solution

Oxides of highly electropositive metals (Ca, K) are too stable to be reduced by carbon at practical temperatures (their Ellingham

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Question ID VK-103395