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Burning of wood is what type of change?

Answer and explanation

Correct answer: Chemical change

The governing concept is the distinction between physical and chemical changes. In a physical change, the form or state may change but the substance remains chemically the same. In burning, wood reacts with oxygen in the air and produces new substances, including ash, carbon dioxide, water vapour, and other gases. The original wood cannot be recovered simply by reversing the process, and heat and light are released during the reaction. These are clear signs of a chemical change. Therefore option B is correct. Melting and condensation are physical state changes and do not describe combustion; option A is therefore wrong, while C and D are incomplete and irrelevant.

Related tags

Chemical ChangeCombustionPhysical And Chemical ChangesNature Of MatterSome Basic Concepts Of ChemistryChemistryClass 11 Mcq

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