Question

8. Middle zone of the flame is zone of partial combustion. Give reason.​

Answer 1

Answer:

The middle zone of a flame is yellow:It is bright and luminous. The fuel vapours burn partially in the middle zone because there is not enough air of burning in this zone. The partial burning of fuel in the middle zone produces carbon particles.

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Answer 2

Answer:

The middle zone is yellow and luminous because As it is an oxygen-depleted zone, insufficient oxygen exists to burn all of the wax vapor. As such, partial combustion of wax takes place. The zone also contains unburnt carbon vapor. The temperature in this region is hotter than the innermost zone but cooler than the outer zone.