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Write the reduction and oxidation half r...

Write the reduction and oxidation half reactions for Daniell cell.

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(i) `Cu^(2+) + 2e^(-) to Cu` (s) (reduction half reaction)
(ii)`Zn (s) to Zn^(2+) (aq) + 2e^(-)` (oxidation half reaction)
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U-LIKE SERIES-ELECTROCHEMISTRY -CASE BASED/SOURCE-BASED INTEGRATED QUESTIONS (VERY SHORT ANSWER QUESTIONS (1 MARK EACH))
  1. Write the reduction and oxidation half reactions for Daniell cell.

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  2. Define resistivity of a substance.

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  3. What is the difference between conductivity and specific conductance ?

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  4. How much charge in Faradays is required for the reduction of 1 mol of ...

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  5. How may the conductivity of an intrinsic semiconductor be increased ?

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  6. Express the relation between conductivity and molar conductivity of a ...

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  7. What is meant by limiting molar conductivity ?

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  8. Can absolute electrode potential of an electrode be measured ?

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  9. Can E("cell") or Delta(r)G^(@) for a cell reaction ever be equal to ...

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  10. Write the product obtained at anode on electrolysis of concentrated su...

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  11. Why can't aluminium be reduced by carbon ?

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  12. Write the overall reaction in nickel-cadmium cell during discharge.

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  13. Under what condition is E("cell") =0 or Delta(r)G^(@)=0?

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  14. What does the negative sign in F(Zn^(2+)//Zn)^(@) =-0.76 V mean?

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  15. Depict the galvanic cell in which the cell reaction is Cu + 2Ag^(+)...

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  16. Give two examples of corrosion.

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  17. Why is alternating current used for measuring resistance of an electro...

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  18. A galvanic cell has electrical potential of 1.1 V. If an opposing pote...

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  19. How will the pH of brine (aq NaCl solution) be affected when it is ele...

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  20. What do the notations G and G* represent ?

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