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What is standard hydrogen electrode ? Gi...

What is standard hydrogen electrode ? Give the reaction that occurs at this electrode when it acts as a positive electrode in an electrochemical cell.

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Standard hydrogen electrode or normal hydrogen electrode is that electrode in which `H_(2)` gas is in contact with `H^(+)` ions of 1 M concentration at 298 K and one bar pressure.
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ICSE-ELECTROCHEMISTRY-EXERCISE (PART-II Descriptive Questions)
  1. Define standard electrode potential.

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  2. Define standard electrode potential.

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  3. What is standard hydrogen electrode ? Give the reaction that occurs a...

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  4. Standard electrode potential of SHE at 298 K is :

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  5. What is the emf of the cell when the cell reaction attains equilibriu...

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  6. What does the standard electrode potential of a metal being negative (...

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  7. In the operation of a galvanic cell, at one of the electrodes, oxidat...

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  8. What is the representation of a Daniell cell ?

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  9. What does the negative value of E("cell")^(Theta) indicate?

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  10. The standard reduction potential for Zn^(2+)//Zn is -0.76V. Write th...

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  11. Write Nernst equation for the following cell reaction : Zn"|"Zn^(2+)...

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  12. What is the effect of increase in concentration of zinc ions on the e...

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  13. How can the reduction potential of an electrode increased ?

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  14. Under what conditions will a galvanic cell send no current into outer...

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  15. Electrochemical Series

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  16. Write the symbolic notation for standard hydrogen electrode and its p...

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  17. Write Nernst equation for the electrode reaction: M^(n+) +n e^(-) t...

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  18. Write Nernst equation for the reaction: (i) 2Cr(s) +3Cd^(2+)(aq) to...

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  19. Discuss the relation between free energy and EMF.

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  20. Why is equilibrium constant K related to only E("cell")^(Theta) and n...

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