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Local action in an electrochemical actio...

Local action in an electrochemical action can be prevented by

A

using very pure electrolytes in two half cells

B

using yery pure metal for anode

C

coating zinc anode with mercury

D

using pure grapnite for cathode

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The correct Answer is:
B, C
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FIITJEE-ELECTROCHEMISTRY-Assignment Problems (Objective) Level -II
  1. Local action in an electrochemical action can be prevented by

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  2. Daniel cell, the EMF of the cell can b e increased b y

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  3. Units of conductance are

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  4. The standard emf for the cell reaction, Zn+Cu^(2+) to Cu^(2+) to Cu+...

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  5. A salt bridge

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  6. z On the electrolysis of an aqueous solution of NaF using the gram equ...

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  7. A piece of Cu is added to an aqueous solution of FeClg

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  8. Pick out the wrong statement, An electrochemical cell stops working on...

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  9. What is not true about S.H.E.?

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  10. On the electrolysis of very dilute aqueous solution of NaOH using Pt ...

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  11. In which case (E("cell")-E("cell")^(@)) is zero

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  12. Reaction taking place in a fuel cells are:

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  13. Which of the following changes will increase the EMF of the cell : C...

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  14. Consider the cell : Cd(s)|Cd^(2+)(1.0M)||Cu^(2+)(1.0M)|Cu(s) If we...

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  15. What is the value of the reaction quotient, Q, for the cell? Ni(s)|N...

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  16. By passage of 1 F of electricity:

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  17. The cell emf is independent of concentration of the species of the cel...

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  18. Predict whether a spontaneous reaction will occur:

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  19. Standard electrode potential data are useful for understanding the sui...

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  20. Given : E^(c-).(Ag^(o+)|Ag)=0.80V, E^(c-).(Mg^(2+)|Mg)=-2.37V, E^(...

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