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Define anode and cathode....

Define anode and cathode.

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Anode is the electrode at which oxidation occurs. It sends electrons into the outer circuit. It has a negative charge and in shown as (-) in cell diagram.
Cathode is the electrode at which electrons at which electrons are received from the outer circuit. It has a positive charge and is shown as (+) in cell diagram.
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Knowledge Check

  • Assertion : In Daniel cell, oxidation takes place at the zinc electrode Reason : To maintain electrical neutrality in the anode and cathode compartment, a salt bridge is used

    A
    (A) and (R) are true and (R) is the correct explanation of (A)
    B
    Both (A) and (R) are true but (R) does not explain (A)
    C
    (A) is true but (R) is false
    D
    Both (A) and (R) are false

  • The anode and cathode used in Leclanche cell are …………….. respectively.

    A
    Zinc , Graphite rod with `MnO_2`
    B
    Graphite rod in `MnO_2` and Zinc container
    C
    Zn container and copper rod
    D
    Copper container and Zinc rod

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