Thus, the central zone of the candle flame is luminous due to the incomplete combustion temperature. Inner dark zone of no combustion : The dark zone around the wick is called inner dark zone of no combustion. ... The blue colour of this zone is due to the burning of the carbon monoxide produced in the dark zone.
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Answer:
Thus, the central zone of the candle flame is luminous due to the incomplete combustion temperature. Inner dark zone of no combustion : The dark zone around the wick is called inner dark zone of no combustion. ... The blue colour of this zone is due to the burning of the carbon monoxide produced in the dark zone.