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16 May, 16:35

Which of the following is an oxidation-reduction reaction?

• SO2 (g) + H2O (1) H2SO3 (aq)

• CaCO3 (s), Cao (s) + CO2 (g)

Ca (OH) 2 (s) + H2CO3 (1) CaCO3 (aq) + 2H2O (1)

• CsH1206 (s) + 602 (9) _, 6C02 (g) + 6H20 (7

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  1. 16 May, 16:54
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    C₆H₁₂O₆ + 6 O₂ ⇒ 6 CO₂ + 6 H₂O

    This is an oxidation-reduction reaction, because oxidation numbers of carbon and oxygen atoms are different than before reaction.

    (-_ - (-_-) - _-)
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