JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Compounds of Transitional Elements

  • question_answer
    Iron pipes lying under acidic soil are often attached to blocks of magnesium for protection from rusting. Magnesium offers protection to iron against corrosion because it [KCET 1998]

    A) Is more readily converted into positive ions

    B) Is lighter than iron

    C) Forms a corrosion-resistant alloy with iron

    D) Prevents air from reaching the surface of iron

    Correct Answer: A

    Solution :

    Electric protection: In this Mg acts as anode while iron pipe as cathode. Mg loses electrons prior to iron.


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