Question

In which of the following compounds does iron have the lowest oxidation number?FeOHB. All are equalC. Fe(OH)3D. Fe(OH)2

Answer 1

A. FeOH

Step-by-step explanation:

To determine the oxidation number of iron in each compound it is important to consider that the total charge of OH is -1, and then we have to multiply it by the corresponding subscript:

Fe in FeOH has an oxidation number of +1.

Fe in Fe(OH)3 has an oxidation number of +3.

Fe in Fe(OH)2 has an oxidation number of +2.

So, iron has the lowest oxidation number in FeOH.