Question

Luminous zone of the candle flame contains unburnt carbon particles. Show through an activity

Answer 1

The circular dark ring is formed on the slide by deposition of unburnt carbon particles present (middle) luminous zone of the candle.
The copper wire takes the least time to become red hot when introduced into the (outermost) non luminous zone of the flame as this zone has the highest temperature.

Answer 2

Explanation:

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