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What is a fuel cell ? Give advantages of...

What is a fuel cell ? Give advantages of a fuel cell.

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Fuel cell. It is a device which directly converts solar energy into electrical energy e.g. `H_(2)-O_(2)` fuel cell.
Advantages of fuel cell :
(i) It does not cause pollution
(ii) It has infinite life time.
(iii) It has an efficiency of 60-70%.
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MBD -HARYANA BOARD-ELECTROCHEMISTRY-SHORT ANSWER TYPE QUESTIONS
  1. While giving labelled diagram of dry cell write reactions taking place...

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  2. How much electricity in terms of Faraday is required to produce (i) ...

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  3. Define molar conductance and secondary cells.

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  4. Define equivalent conductance and primary cells.

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  5. State and explain Kohlrausch's law. How does it help in the calculatio...

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  6. Define the processes of oxidation and reduction with example.

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  7. How an electrochemical cell is represented by cell notation ?

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  8. Explain why blue colour of CuSO(4) solution is discharged when Zn rod ...

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  9. Find the standard Gibbs free energy (DeltaG^(@)) for the given reactio...

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  10. What is a fuel cell ? Give advantages of a fuel cell.

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  11. If a current of 0.5 ampere flows through a metallic wire for 2 hours, ...

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  12. How many coulombs are required to produce 40.5 g of Al from molten Al(...

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

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  14. What are two functions of Salt bridge in an Electrochemical cell ?

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  15. List the important uses of salt bridge.

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  16. What is sacrificial protection from rusting ? Which metal is generally...

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  17. 0.05 M NaOH solution offered a resistance of 31.6 ohm in a conductivit...

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  18. What is corrosion ? What are the factors which affect corrosion ?

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  19. Define corrosion. What is the chemical formula of rust?

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  20. What is electrolysis ? Discuss electrolysis of molten electrolyte.

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