Question

☞Burning of wood is a ______ reaction. ▼​

Answer 1

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Burning of wood is a chemical reaction.

Extra info -

1. Some properties of chemical reactions :

• Permanent in nature
• They're irreversible which means that these reactions cannot be reversed.
• In this kind of reaction, the original substance can't be obtained back.
• Some examples - turning of milk into curd, turning of paper into ashes which means burning of paper and etc.

2. Some properties of physical reactions :

• Temporary in nature
• They're reversible
• In this kind of reaction, the original substance can be obtained back.
• Some examples - folding paper, moulding clay into different shapes and etc.