Question

moisture is called ....
>
6 The reddish brown powder on the
surface of iron nails exposed to air and​

Answer 1

Answer:

Hydrated iron oxide

Explanation:

Due to corrosion of iron in the atmosphere,

cause the rusting of iron .

Reaction :-

4Fe + 3O2 + nH2O -> 2Fe2O3.nH2.O

where n is number of water molecules