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    Electrochemistry

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    Electrochemistry

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    11 views2 pages

    Electrochemistry

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    singh.harmeet2006

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    1

    Parishram 2.0 (2024)


    Electrochemistry DPP-01

    1. Galvanic or voltaic cell is a device used to convert 6. In a galvanic cell, which of following statement(s)
    chemical energy produced in ________ reaction is/are correct regarding salt bridge.
    into __________ energy. (1) To complete the electrical circuit.
    (1) Chemical, chemical (2) To maintain the electrical neutrality of both
    (2) Electrical, chemical anodic and cathodic compartment.
    (3) Redox, electrical
    (3) For smooth flow of current
    (4) Redox, redox
    (4) All are correct
    2. In Daniell cell
    (1) Zn rod as anode and Cu rod as cathode 7. A standard hydrogen electrode has a zero potential
    (2) Zn rod as cathode and Cu rod as anode because
    (3) Zn rod is represented by (+ve) electrode (1) Hydrogen is the lightest element.
    (4) Cu rod is represented by (–ve) electrode (2) Hydrogen has only one electron.
    (3) Hydrogen can be most easily oxidized.
    3. The potential difference between the two (4) The electrode potential is assumed to be zero
    electrodes of a galvanic cell is called at standard condition.
    (1) Electrode potential
    (2) Zeta potential
    8. A hypothetical electrochemical cell is shown below
    (3) Cell potential
    A | A+(xM) || B+(yM) | B
    (4) Junction potential
    The e.m.f. measured is +0.20 V. The cell reaction
    is
    4. In Galvanic cell, conventional,
    (1) A + B+  A+ + B
    (1) Anode is on the left hand side and is (+ve)
    (2) A+ + B  A + B+
    electrode
    (2) Cathode is on the left hand side and is (–ve) (3) A+ + e–  A
    electrode (4) B+ + e–  B
    (3) Cathode is on the left hand side and is (+ve)
    electrode
    (4) Anode is on the left hand side and is (–ve)
    electrode, cathode is on right hand side and is
    +ve electrode

    5. Which of following statements is/are correct for a


    galvanic cell?
    I. Reduction at cathode and oxidation at anode.
    II. Reduction at anode and oxidation at cathode.
    III. Electrons flow from anode to cathode
    IV. Electrons flow from cathode to anode
    (1) I, IV (2) II, III
    (3) II, IV (4) I, III
    2

    Note: Kindly find the Video Solution of DPPs Questions in the DPPs Section.
    Answer Key
    1. (3) 5. (4)
    2. (1) 6. (4)
    3. (3) 7. (4)
    4. (4) 8. (1)

    PW Web/App - https://smart.link/7wwosivoicgd4

    Library- https://smart.link/sdfez8ejd80if

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