The reddish brown rust on ion roofing sheets co... - JAMB Chemistry 2017 Question
The reddish–brown rust on ion roofing sheets consists of
A
Fe3 + (H2O)6
B
FeO.H2O
C
Fe2O3.3H2O
D
Fe3O4.2H22O
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Correct Option: C
Iron [Fe] reacts with H2 in the presence of oxygen to form a rust.
4Fe + 3O2 → 2 Fe2O2
Fe2O3 + H2O → Fe2O3.H2O
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