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In a galvanic cell...

In a galvanic cell

A

chemical reaction produces electrical energy

B

electrical energy produces chemical reaction

C

reduction occurs at anode

D

oxidation occurs at cathode

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • In an galvanic cell , the electrons flow

    A
    from cathode to anode
    B
    from anode to cathode
    C
    from anode to solution
    D
    from solution to cathode

  • When a galvanic cell starts operating, with passage of time,

    A
    spontaneous character of the cell decreases, `E_("cell")` decreases
    B
    reaction quotient 'Q' decreases, `E_("cell")` increase
    C
    Useful work obtainable from the cell increases
    D
    as cell stops producing voltage, Q = K.

  • Which of the following statements is correct ? I. In galvanic cell, anode is positive terminal II. In galvanic cell, cathode is negative terminal III. In galvanic cell, anode is negative terminal IV. In galvanic cell, cathode is positive terminal

    A
    I and II
    B
    III and IV
    C
    Only I
    D
    Can't be predicted
    • GRB PUBLICATION-ELECTROCHEMISTY-Galvanic Cell and Salt Bridge
    1. In a galvanic cell

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    2. Which of the following is //are function (s) of salt bredge ?

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    3. Salt bridge contains:

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    4. Saturated solution of KNO3 is used to make "salt bridge" because .

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    5. When the electric current is passed through a cell having an electroly...

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    6. Which of the following statements is true for an electrochemical cell ...

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    7. Which of the following statement is true for the electrochemical Danie...

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    8. Which of the following is not true about emf of a cell?

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    9. The difference between the electrode potentials of two electrons when ...

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    10. What is correct for working Galvanic cell?

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    11. Correct statements about a voltage (galvanic) ell include which of the...

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    12. In electrochemical cells, cathode is always the electrode where:

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    13. Which change could occur at the anode of an electrochemical cell?

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    14. Which occurs at the anode of any voltaic cell? P) A metal electrode ...

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    15. In an operating voltaic cell electrons move through the external circu...

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    16. E.m.f of the cell 2Ag^(+) + Cu rightarrow Cu^(+2) = 2Ag [Given : E...

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    17. Consider the cell potentials E(Mg^(2+)|Mg)^(0)=-2.37V and E(Fe^(3+)|Fe...

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    18. If a spoon of copper metal is placed in a solution of ferrous sulphat...

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    19. The position of some metals in the electrochemical series in dectreasi...

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    20. Given : E^(@) (Cu^(2+//Cu) = 0.337V and E^(@) (Sn^(2+//Sn) = -0.136V. ...

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