Which One of the Following Reactions Is an Example of an Oxidation-Reduction

question 66

Multiple Choice

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

• A)BaO(s) + CO₂(g) \(\rightarrow\) BaCO₃(s)
• B)H₂(g) + F₂(g) \(\rightarrow\) 2HF(g)
• C)CaCO₃(s) \(\rightarrow\) CaO(s) + CO₂(g)
• D)HCl(aq) + NaOH(aq) \(\rightarrow\) NaCl(aq) + H₂O(l)
• E)Ba²⁺(aq) + SO₄^2-(aq) \(\rightarrow\) BaSO₄(s)

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