Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

Hall-Heroult's process is given by  

  1. A

    Cr2O3 + 2Al Al2O3 + 2Cr

  2. B

    Cu2+ (aq.) + H2(g) Cu(s) + 2H+ (aq)

  3. C

    ZnO + C Zn + CO

  4. D

    2Al2O3 + 3C 4Al + 3CO2

Solution

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