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2. Oxidation and Reduction: Answer the following questions by circling the appropriate choice. [A] A substance is oxidized wh
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Answer #1

A)
Oxidation is lost of electron or increase in oxidation state
Answer: loses electrons

B)
Reduction is gain of electron or decrease in oxidation state
Answer: gains electrons

C)
Fe in Fe2O3 has oxidation state of +3
Fe in Fe has oxidation state of 0
So, Fe in Fe2O3 is reduced to Fe

S in S has oxidation state of 0
S in SO2 has oxidation state of +4
So, S in S is oxidised to SO2

Oxidised: S
Reduced: Fe2O3

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