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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 electrochemical cells

B

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

C

Reduction occur at the cathode

D

Oxidation occurs at the anode.

Text Solution

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The correct Answer is:
B
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JMD PUBLICATION-ELECTRO CHEMISTRY-EXAMPLE
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  2. Copper sulphate solution cannot be stored in a vessel made up of: Zinc...

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  3. Which of the following statements is false?

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  4. for the electrorode reaction, M^(n+)(aq)+n e^(-)rarrM(s) Nernst equ...

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  5. The tendencies of the electrodes made up of Cu,Zn and Ag to release el...

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  6. Consider the following reactions: Zn(s)+cu^(2+)(aq)rarrZn^(2+) (aq)+...

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  7. In a galvanic cell, which one of the following statements is not corre...

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  8. E(cell) and triangleG^o are related as: triangleG^o=nFE^o, triangleG^o...

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  9. The S.I. units of molar conductivity are: S m^2mol^-2, S m mol^-1, Sm^...

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  10. The electrode potential of SHE is fixed as

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  11. In galvanisation, metal plating on iron to protect against corrosion ...

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  12. Which of the following statements is regarding rusting/corrosion?

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  13. Rust is mixture of:

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  14. In a galvanic cell cathode is positive electrode and anode is negative...

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  15. Why does the conductivity of a solution decrease with dilution?

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  16. What is dilution?

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  17. Describe Ni-Cd storage cell.

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  18. Define Specific conductance.

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  19. During electrolysis of NaCl (aq) using inert electrodes, the product a...

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  20. Kohlrausch law can be used to find the molar conductivity of a weak el...

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