Question

Q 1Do you think formation of rust from iron is a chemical change?(Don't give answer of first question) Q.2Give reaso Give two other examples of a similar type of change.


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Answer 1

Answer:

Ans 1: Yes, formation of rust is a chemical change because a whole new thing is being formed from moisture and oxygen. So, we can say that the formation of rust is a chemical change.

Ans 2: Other examples of chemical changes are- formation of curd, photosynthesis, decomposition of substances and formation of compost/manure etc.

In answer 2, photosynthesis can be called a chemical change because plants take in CO₂ (carbon dioxide) and transform it into C₆H₁₂O₆ (glucose) and O₂ (oxygen).

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