Is corrosion both a chemical as well as physical change?

Asked by Trisha Gupta | 23rd Sep, 2021, 01:57: PM

Expert Answer:

Corrosion is a chemical change because chemical formulae of the substance is changed due to this process.
 
Example- Corrosion of Fe-
 
4Fe + 3O2 + 2xH2O →2Fe2O3.xH2O

Answered by Ravi | 23rd Sep, 2021, 04:06: PM