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During the electrolytic reduction of alu...

During the electrolytic reduction of alumina, the reaction at cathode is

A

`2H_(2)O rarr O_(2) +4H+4e^(-)`

B

`3F rarr 3F+3e^(-)`

C

`Al^(3+) 3e^(-) rarr Al`

D

`2H^(+) rarr 2e^(-) rarr H_(2)`

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AAKASH SERIES-ELECTROCHEMISTRY -OBJECTIVE EXERCISE - 1 ( Electrolysis)
  1. As electrolysis is in progress, if the cathode plate is removed

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  2. In the electrolytic cell, flow of electrons is from

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  3. In electrolysis of dilute H2SO4, what is liberated at anode in the pre...

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  4. Which process occurs in the electrolysis of aqueous solution of nickel...

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  5. Molten CuCl2, is electrolysed using platinum electrode. The reaction o...

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  6. During the electrolytic reduction of alumina, the reaction at cathode ...

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  7. When an aqueous solution of copper sulphate is electrolysed using copp...

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  8. Which of the following reaction is possible at anode ?

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  9. Aqueous solution of CuSO4 is electrolysed using inert electrodes till ...

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  10. After the electrolysis of aqueous solution of NaCl using Pt electrodes...

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  11. During the electrolysis of aqueous solution of the following, molarity...

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  12. Aqueous NaCl solution is electrolyzed using platinum electrodes. What ...

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  13. At anode in the electrolysis of fuscd sodium chloride

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  14. In electrolysis of NaCl when Pt electode is taken then H2 is liberated...

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  15. Which of the following ions is discharged at the cathode when an aqueo...

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  16. During electrolysis of fused NaOH

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  17. Aqueous solution of AgNO3 is electrolysed using inert electrodes. At t...

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  18. At cathode, the electrolysis of aqueous Na2SO4 gives

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  19. An aqueous solution containing one mole per litre of each Cu(NO3)2 , A...

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  20. The electrolysis of an aqueous solution of KNO3 between platinum elect...

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