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Which of the following statements is Fal...

Which of the following statements is False?

A

Oxidation and reduction half-reactions occur at electrodes in electro chemical cells.

B

All electrochemical reactions involve the transfer of electrons

C

Reduction occurs at the cathode

D

All voltaic (galvanic) cells involve the use of electricity to initiate non-spontaneous chemical reactions.

Text Solution

Verified by Experts

The correct Answer is:
D
Simultaneously reduction and oxidation occur
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ACCURATE PUBLICATION-ELECTRO CHEMISTRY-Numbericals Practice
  1. Which of the following statements is False?

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  2. Give cell is {:([Ni|Ni^(2+) ||Cu^(2+)|Cu]),(" (0.01m) (0.1m)"):} ...

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  3. A cell raction is n (s)| Sn((0.50M))^(2+)//H((0.020M))^(+)//H(2)(g). C...

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  4. Calculate the maximum work that can be obtained from the Daniell cells...

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  5. The resistance of a 0.5 M solution of an electrolyte in a conductivity...

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  6. The resistance of a 0.5 M solution of an electrolyte enclosed between ...

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  7. A solution of CuSO4 is electrolysed for 10 minutes with a current of 1...

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  8. Can Chlorine gas be stored in Copper Cylinder ? Given E(Cu^(+)//Cu)^(@...

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  9. State and explain Kohlrausch's law. How would you determine the molar ...

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  10. Write Nernst equation and calculate the e.m.f. of the following cell a...

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  11. Write Nernst equation and calculate e.m.f. of the cell at 298 k. Mg(...

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  12. Write Nernst equation and calculate the e.m.f of the following cell at...

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  13. Calculate the standard Gibbs energy for the cell : Zn(s)+Zn^(2+)(aq)...

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  14. Calculate the standard Gibbs energy for the cell : Zn(s)|Zn^(2+)(aq)...

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  15. Calculate the standard Gibbs energy for the cell : Zn(s)|Zn^(2+)(aq)...

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  16. The lamda^(@) values of KNO(3) and LiNO(3) are 145.0 and 110.1 S cm^(2...

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  17. Write Nernst equation and calculate the e.m.f of the following cell at...

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  18. The lamda^(@) values of KCl and KNO(3) are 149.9 and 144.9 S cm^(2)mol...

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  19. The lamda^(@) values of NaCl and NanO(3) are 126.5 and 121.6S" "cm^(2)...

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  20. The calculate the e.mf. Of the following cell at 298: Fe|Fe^(2+)(0.1...

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  21. Can we store copper sulphate solution in an iron vessel ?

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