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Miscellaneous·2018·Easy

Which one of the following is an oxidation-reduction reaction?

Which one of the following is an oxidation-reduction reaction?

Options

  1. a.

    NaOH + HCl → NaCl + H₂O

  2. b.

    CaO + H₂O → Ca(OH)₂

  3. c.

    2Mg + O₂ → 2MgO

    Correct answer
  4. d.

    Na₂SO₄ + BaCl₂ → BaSO₄ + 2NaCl

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