Rusting of iron can be identified by change in its:
Question 21
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust. (a) Do you think rust is different from iron? (b) Can you change rust back into iron by some simple method. (c) Do you think formation of rust from iron is a chemical change? (d) Give two other examples of a similar type of change.
Rusting of iron is a chemical change and chemical change is a permanant changes occur but we can remove the rust of iron by coating or painting than how it is a chemical change not a physical change?
Rusting of iron can be prevented by:
Isnt rusting of iron a reversilble change we can just clean it but in this chapter it is considered irreversible why?