9th Class Science Is Matter Around Us Pure Question Bank 9th CBSE Science Is Matter Around Us Pure

  • question_answer
    How will you justify that rusting of iron is a chemical change?

    Answer:

                 Rust is totally different from iron. Iron is an element while rust is hydrated oxide of iron \[[F{{e}_{2}}{{O}_{3}}\cdot x{{H}_{2}}O].\] Thus, formation of rust from iron is a chemical change.


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