JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Alkaline Earth Metals

  • 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 [DPMT 2004; BHU 2004]

    A) Prevents air from reaching the surface of iron

    B) is more readily converted into positive ions

    C) Is higher than iron

    D) Forms a corrosion-resistance alloy with iron

    Correct Answer: B

    Solution :

    Due to electropositive and reactive in nature, magnesium is readily converted into positive ions on contact with iron pipes and hence, iron pipes remains as it is.


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