Rust on the surface of a metal sheet contains
- hydrated iron(II)oxide
-
hydrated iron(III)oxide
- iron(III)hydroxide
- iron(III) trioxocarbonate(IV)
The correct answer is: B
Explanation
Rust on a metal sheet contains iron oxide, which is a compound made of iron, oxygen, and hydrogen:
- Chemical formula: The chemical formula for rust is Fe\(_2\)O\(_3\).x H\(_2\)O also known as hydrated Iron(III) oxide.
- The chemical equation for the rusting of iron is
4Fe + 3O\(_2\) + xH\(_2\)O → 2Fe\(_2\)O\(_3\)⋅xH\(_2\)O
There is an explanation video available .