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What is a chemical change?
Chemical change: The change in which chemical properties of the matter change is known as chemical change.
During a chemical reaction, the chemical bonds between the molecules broken, rearranged, and new bonds are formed resulting in the formation of a new compound.
For example, photosynthesis reaction is a chemical change as carbon dioxide and water in the presence of sunlight and chlorophyll to give sugar molecule and oxygen as a product. Here, sugar once formed cannot be converted back to carbon dioxide and water easily. As a new compound is formed from the reaction between water and carbon dioxide, it is a chemical change.
Other Examples: Digestion of food, burning of petrol and diesel, rusting, preparation of tea and coffee, etc.
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