General Principles and Processes of Isolation of Elements

JEE Advanced · Chemistry · 23 past questions

1. Q1 2023 Paper 1

   The correct statement(s) related to processes involved in the extraction of metals is(are)

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2. Q2 2022 Paper 1

   The electrochemical extraction of aluminum from bauxite ore involves

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3. Q3 2022 Paper 2

   The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the…

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4. Q4 2021 Paper 1

   The correct statement(s) related to the metal extraction processes is(are)

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5. Q5 2020 Paper 2

   Which among the following statement(s) is(are) true for the extraction of aluminium from bauxite?

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6. Q6 2019 Paper 1

   Calamine, malachite, magnetite and cryolite, respectively, are

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7. Q7 2019 Paper 2

   The cyanide process of gold extraction involves leaching out gold from its ore with $\mathrm{CN}^-$ in the…

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8. Q8 2019 Paper 2

   With reference to *aqua regia*, choose the correct option(s)

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9. Q9 2018 Paper 2

   Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the…

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10. Q10 2016 Paper 2

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

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11. 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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12. 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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13. Q13 2014 Paper 1

    Upon heating with Cu$_2$S, the reagent(s) that give copper metal is/are

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14. Q14 2013 Paper 1

    Sulfide ores are common for the metals

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15. Q15 2013 Paper 2

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

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16. 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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17. Q17 2011 Paper 1

    Extraction of metal from the ore cassiterite involves

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18. Q18 2010 Paper 1

    Paragraph for Questions 14 to 16…

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19. Q19 2010 Paper 1

    Paragraph for Questions 14 to 16…

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20. 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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21. Q21 2008 Paper 2

    Match the conversions in Column I with the type(s) of reaction(s) given in Column II. Indicate your answer by…

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22. Q22 2007 Paper 1

    Extraction of zinc from zinc blende is achieved by

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23. Q23 2007 Paper 1

    Argon is used in arc welding because of its

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