Question

.l 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 rust
different from iron?(b) Is
formation of rust from iron a
chemical change?(c) Can you
change rust back into iron by
some simple method?(c) Give
some other examples of a
similar type of changes.​

Answer 1

Answer:

correct

Explanation:

option B— is formation of rust from iron a chemical change

is oxidation

this is a correct answer

Answer 2

Answer:

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 rust

different from iron?(b) Is

formation of rust from iron a

chemical change?(c) Can you

change rust back into iron by

some simple method?(c) Give

some other examples of a

similar type of changes.