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Electrolysis and Storage of Batteries - section-1
  1. Electrolyte used in an Edison cell is

    2. A.

     NaOH
    B.

     kOH
    C.

     HC1
    D.

     HN03

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  2. Life of the batteries is in the following ascending order.

    3. A.

     Lead-acid cell, Edison cell, Nickel cadmium cell
    B.

     Lead-acid cell, Nickel-cadmium cell, Edison cell
    C.

     Edison cell, Nickel-cadmium cell, lead-acid cell
    D.

     Nickel-cadmium cell, Edison cell, lead-acid cell

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  3. Mercury cell has which of the following characteristics?

    4. A.

     Flat discharge current-voltage curve
    B.

     High power to weight ratio
    C.

     Comparatively longer shelf life under adverse conditions of high temperature and humidity
    D.

     All of the above

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  4. Following will happen if battery charging rate is too high

    5. A.

     excessive gassing will occur
    B.

     temperature rise will occur
    C.

     bulging and buckling of plates will occur
    D.

     all above will occur

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  5. Negative plate of an Edison cell is made of

    6. A.

     copper
    B.

     lead
    C.

     iron
    D.

     silver oxide

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  6. The body of Edison cell is made of

    7. A.

     bakelite
    B.

     rubber
    C.

     nickel plated steel
    D.

     aluminium

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  7. The active materials of a nickel-iron battery are

    8. A.

     nickel hydroxide
    B.

     powdered iron and its oxide
    C.

     21% solution of kOH
    D.

     all of the above

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  8. As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its

    9. A.

     compactness
    B.

     lower e.m.f.
    C.

     small quantity of electrolyte used
    D.

     higher internal resistance

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  9. Dry cell is modification of

    10. A.

     Deniell cell
    B.

     Leclanche cell
    C.

     Lead-acid cell
    D.

     Edison cell

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  10. In alkaline cell the electrolyte is

    11. A.

     dilute sulphuric acid
    B.

     concentrated sulphuric acid
    C.

     NaOH
    D.

     kOH

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