Formation of rust when iron is exposed to moist air is called ________.
Double displacement
Displacement
Corrosion
Neutralization
Corrosion is a chemical reaction in which a metal reacts with atmospheric moisture and oxygen gas to form metallic oxides. Rust is iron oxide.
When iron (Fe) is exposed to moist atmosphere for a long time, rust is formed which is a layer of a brown flaky substance. What is the chemical composition of this iron rust?
When copper is exposed to moist air for a long time then a layer deposits on its surface due to corrosion. The colour of this layer is:
A coating of _________is deposited on iron to protect it from corrosion and formation of rust.