General Principles and Processes of Isolation of Elements

JEE Advanced · Chemistry · 23 past questions

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1. Q2 2022 Paper 1

   The electrochemical extraction of aluminum from bauxite ore involves

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2. Q6 2019 Paper 1

   Calamine, malachite, magnetite and cryolite, respectively, are

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3. Q10 2016 Paper 2

   Extraction of copper from copper pyrite ($\mathrm{CuFeS_2}$) involves

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4. Q11 2015 Paper 1

   Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is…

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5. Q12 2015 Paper 1

   Match the anionic species given in Column I that are present in the ore(s) given in Column II.

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6. Q14 2013 Paper 1

   Sulfide ores are common for the metals

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7. Q15 2013 Paper 2

   The carbon-based reduction method is **NOT** used for the extraction of

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8. Q16 2012 Paper 2

   In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are

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9. Q17 2011 Paper 1

   Extraction of metal from the ore cassiterite involves

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10. Q18 2010 Paper 1

    Paragraph for Questions 14 to 16…

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11. Q19 2010 Paper 1

    Paragraph for Questions 14 to 16…

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12. Q20 2008 Paper 1

    Native silver metal forms a water soluble complex with a dilute aqueous solution of NaCN in the presence of

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13. Q22 2007 Paper 1

    Extraction of zinc from zinc blende is achieved by

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14. Q23 2007 Paper 1

    Argon is used in arc welding because of its

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