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25 October, 02:25

Cu2 - > Cu2 + is it getting oxidized?

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  1. 25 October, 05:56
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    Cu²⁺ + 2e⁻ → Cu (copper gets reduced)

    Cu → Cu²⁺ + 2e⁻ (copper gets oxidized)

    Oxidation:

    Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

    Reduction:

    Reduction involve the gain of electron and oxidation number is decreased.

    Consider the following reactions.

    4KI + 2CuCl₂ → 2CuI + I₂ + 4KCl

    the oxidation state of copper is changed from + 2 to + 1 so copper get reduced.

    CO + H₂O → CO₂ + H₂

    the oxidation state of carbon is + 2 on reactant side and on product side it becomes + 4 so carbon get oxidized.

    Na₂CO₃ + H₃PO₄ → Na₂HPO₄ + CO₂ + H₂O

    The oxidation state of carbon on reactant side is + 4. while on product side is also + 4 so it neither oxidized nor reduced.

    H₂S + 2NaOH → Na₂S + 2H₂O

    The oxidation sate of sulfur is - 2 on reactant side and in product side it is also - 2 so it neither oxidized nor reduced.
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