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Why does a dry cell become dead after a...

Why does a dry cell become dead after a long time even if it has not been used ?

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A dry cell becomes dead after a long time even if it has not been used because the acidic `NH_(4) Cl` corrodes the zinc container.
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Knowledge Check

  • A depolariser used in dry cell batteries is :

    A
    A mmonium chloride
    B
    Managanese dioxide
    C
    Potassium hydroxide
    D
    Sodium phosphate

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