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1

Identify the oxidants and reductants in the following reactions.
(A) \( \mathrm{CH}_{4}(\mathrm{~g})+4 \mathrm{Cl}_{2}(\mathrm{~g}) \rightarrow \mathrm{CCl}_{4}(\mathrm{~g})+4 \mathrm{HCl} \)
(B) \( 2 \mathrm{H}^{+} \)(aq) \( +\mathrm{MnO}_{2} \) (s) \( +\mathrm{C}_{2} \mathrm{H}_{2} \mathrm{O}_{4} \rightarrow \)
\( \mathrm{Mn}^{2+}(\mathrm{aq})+2 \mathrm{CO}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \)
(C) \( \mathrm{I}_{2} \) (aq) \( +2 \mathrm{~S}_{2} \mathrm{O}_{3}^{2-}(\mathrm{aq}) \rightarrow 2 \mathrm{I}^{-}(\mathrm{aq})+\mathrm{S}_{4} \mathrm{O}_{6}^{2-}(\mathrm{aq}) \)
(D) \( \mathrm{Cl}_{2}(\mathrm{~g})+2 \mathrm{Br}^{-}(\mathrm{aq}) \rightarrow 2 \mathrm{Cl}^{-}(\mathrm{aq})+\mathrm{Br}_{2}(\mathrm{aq}) \)
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