Question

Which of the following compounds contains the Iron (III) ion?

A) FeN
B)FeS
C)FeCl2
D)FeS

Answer 1

(A)

Step-by-step explanation:

All the Fe ions in the other choices have +2 valences. Since the N ion has a -3 valence, the compound FeN can only be formed if Fe has a +3 valence.