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In an electrochemical cell, anode and ca...

In an electrochemical cell, anode and cathode are:

A

positively and negatively charged ions

B

positively and negatively charged electrodes

C

negatively and positively charged electrodes

D

negatively and positively charged ions

Text Solution

Verified by Experts

The correct Answer is:
C
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(a) What do you mean by Electrolytic cell? (b) An electrochemical cell is made of nickel and copper electrodes with their standard reduction potentials -0.25 V and +0.34 V respectively. Select the anode and cathode. Represent the cell and find e.m.f. of the cell.

Knowledge Check

  • In electrochemical cells, cathode is always the electrode where:

    A
    oxidation occurs
    B
    reduction occurs
    C
    positive ions are formed
    D
    negative ions are formed

  • The mass of product liberated on anode in an electrochemical cell depends on (where t is the time period for which the current is passed. )

    A
    `(It)^(1/2)`
    B
    It
    C
    I/t
    D
    `I^2t`

  • The main difference between conventional electro-chemical cell and fuel cell is the materials undergoing oxidation at the anode or reduction at the cathode in fuel cell

    A
    are not stored
    B
    are stored inside the cell
    C
    are stored outside the cell
    D
    reactions at anode and cathode

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