Which of the following ion/ions that result in the blue-green color of the active head in a corrosion filament?

Ferric oxide and hydrated ferric oxide ions

Which of the following ion/ions that result in the blue-green color of

1.	Which of the following ion/ions that result in the blue-green color of the active head in a corrosion filament?
A.	Ferrous ions
B.	Ferric oxide ions
C.	Hydrated ferric oxide ions
D.	Ferric oxide and hydrated ferric oxide ions
Answer» B. Ferric oxide ions