CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer Stainless steel does not rust because :

    A)  chromium and nickel combine with iron

    B)  chromium forms an oxide layer and protects iron from rusting

    C)  nickel present in it, does not rust

    D)  iron forms a hard chemical compound with chromium present in it

    Correct Answer: B

    Solution :

    Chromium is more electropositive metal than iron. In stainless steel, chromium forms an oxide layer and thus it protects steel from corrosion.

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