What is the oxidation number of Iron (Fe) in each of the questions below?
Column A
1. The oxidation number of Fe in the compound Fe2O4 is
2. The oxidation number of Iron (Fe) as a free element is
3. The oxidation number of Fe in the compound FeCl3 is
Column B
a. +4
b. +1
C. -1
d. 0
e. +3
f. -3
g. -2
h. +2
i. -4
1. The oxidation number of Fe in the compound Fe2O4 is +4 (choice a).
2. The oxidation number of Iron (Fe) as a free element is 0 (choice d).
3. The oxidation number of Fe in the compound FeCl3 is +3 (choice e).