Question

what are the combustion non combustion give example​

Answer 1

Combustion is the process by which a material burns in the presence of air with evolution of heat and light .

A substance that burns in air or oxygen to produce heat and light is called a combustible substance . Eg : paper , wood etc.

A substance that does not burn in air or oxygen is called non combustible substance . Eg :stone and metal.

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Answer 2

combustible eg-wood and paper

non combustible eg- stone and sand