Asked by ww
Which of the following is an oxidation-reduction reaction?
SO2(g) + H2O(l) Right arrow. H2SO3(aq)
CaCO3(s) Right arrow. CaO(s) + CO2(g)
Ca(OH)2(s) + H2CO3(l) Right arrow. CaCO3(aq) + 2H2O(l)
C6H12O6(s) + 6O2(g) Right arrow. 6CO2(g) + 6H2O(l)
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Answered by
GPT-5 mini
AI
The redox reaction is:
C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)
Reason: C in glucose (average oxidation state 0) is oxidized to +4 in CO2, and O in O2 (0) is reduced to -2 in CO2 and H2O. The other three reactions involve no change in oxidation states (acid–base or decomposition), so they are not oxidation–reduction.
C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)
Reason: C in glucose (average oxidation state 0) is oxidized to +4 in CO2, and O in O2 (0) is reduced to -2 in CO2 and H2O. The other three reactions involve no change in oxidation states (acid–base or decomposition), so they are not oxidation–reduction.
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