Question

Which of the following statements is correct? *

A) Iron and rust are same substance.

B) Rusting of iron is a chemical change.

C) Removal of rust from surface of iron is chemical change.

D) All of the above​

Answer 1

Answer:

D) All of the above

Explanation:

because iron is rusted . And no one thing is rusted .

Answer 2

Rusting of iron is a chemical change so B is the answer