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    Which of the following can be used as an ethylene scavenger in active packaging?
    Question

    Which of the following can be used as an ethylene scavenger in active packaging?

    A.

    Ferrous oxide

    B.

    Magnesium oxide

    C.

    Calcium oxide

    D.

    Potassium permanganate

    Correct option is D

    Potassium permanganate (KMnO₄) is widely used as an ethylene scavenger in active packaging to extend the shelf life of fruits and vegetables by absorbing ethylene gas, which promotes ripening.

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