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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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Knowledge Check

  • Action and reaction

    A
    act on two different objects
    B
    have equal magnitude
    C
    have opposite directions
    D
    have resultant zero.

  • Reflex action is

    A
    Stimulus `to` sensory `to` motor `to` response
    B
    Stimulus `to` motor `to` sensory `to` response
    C
    Reception `to` motor `to` sensory `to` response
    D
    Sensory `to` stimulus `to` motor `to` response

  • Law of mass action can not be applied to

    A
    `2HI Leftrightarrow H_(2)+I_(2)`
    B
    `PCl_(5) Leftrightarrow PCl_(3)+Cl_(2)`
    C
    `"Water "Leftrightarrow " Ice"`
    D
    `CaCO_(3) Leftrightarrow CaO+CO_(2)`
    • 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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