JAMB - Chemistry (1979 - No. 24)
In the redox reaction\( 2Fe^{2+} + CI_2 → 2Fe^{3+} + 2Cl^-\)
Cl2 is reduced because it has lost electrons
Cl2 is reduced because its oxidation number has decreased
Cl2 is reduced because its molecule is change to two ions
Fe2+ is reduced because it has lost electrons
Fe2+ is reduced because it has gained electrons
Explanation
decrease in oxidation number indicates reduction while an increase in oxidation number indicates oxidation hence chloride gas is reduced because its oxidation number changed from o to -1
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