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AysviL [449]
3 years ago
10

Which reactions are oxidation-reduction reactions? Check all that apply

Chemistry
2 answers:
Kazeer [188]3 years ago
7 0

Answer: options C and D

Explanation: in Redox reaction (oxidation-reduction), oxidation numbers of Reactant and product are different.

In oxidation, oxidation state increases and decreases in the case of Reduction.

In C, oxidation state of C is increased from +3 in C3H6 to +4 in CO2 hence oxidation and oxidation of O2 Decreased from 0 to -2 in H2O, hence Reduction. So it is a redox reaction

Similarly in D, Fe: +3 to 0

Carbon : +2 to +4.

Lostsunrise [7]3 years ago
3 0
The last two.

2C3H6(g)+9O2(g)-> 6CO2(g)+6H2O(g)
Fe2O3(s)+3CO(g)-> 2Fe(I)+3CO2(g)
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