Question

when we burn wood it burns with yellow flame and produces smoke and ash. Give Reason
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Answer 1

Answer:

However, some =burnt wax vapours are present in this zone. (3) Luminous zone: In this region of the flame hydrogen burns with a brilliant yellow luminous flame. Burning hydrogen combines with oxygen to form water vapour. Carbon also burns in this zone giving some luminosity to the flame and producing carbon dioxide.

Answer 2

Answer:

Explanation:

because it is an unsaturated compound. during this reaction insomplete combustion takes place. moreover it completely burned