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    Question

    Which of the following two chemical reactions are

    involved in the corrosion of the iron metal?
    A Oxidation and Displacement Correct Answer Incorrect Answer
    B Reduction and combination Correct Answer Incorrect Answer
    C Oxidation-reduction and combination Correct Answer Incorrect Answer
    D Reduction and Displacement Correct Answer Incorrect Answer

    Solution

    Corrosion is defined as the chemical or electrochemical degradation of metals due to their reaction with the environment. The corrosion of ironknown as rusting, is an oxidation-reduction process that destroys iron objects left out in open, moist air. When iron metal is exposed to oxygen and water, a familiar result is observed-rust.Combining the oxidation and reduction half-reactions gives the balanced chemical equation for the overall reaction of iron, oxygen, and water.

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