Rusting of iron can be observed by a change in colour.
Rusting of iron can be identified by change in it's:
Rusting of iron can be prevented by:
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 the formation of rust on iron is a chemical change?
(d) Give two other examples of a similar type of change.
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.