Question

Answer the following questions
When we keep a piece of
iron in the open area for few
days, a brownish, flaky
substance, called rust, is
deposited on it.
(a) Is rustdifferent from iron?
(b) Isformation of rust from iron a
chemical change?
(c) Can youchange rust back into iron bysome simple method?
(d) Givesome other examples of a
similar type of changes.​​

Answer 1

Answer:

a

Explanation:

a

Answer 2

Answer:

Rust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture. Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances.

Well, let us first get cleared with a simple meaning of it. Yes, rust is different from iron because iron is a material or an element where as rust is the coating formed upon it due to the reaction of iron and oxygen.

Explanation: