Question

What is the colour of outermost zone of the candle flame ?
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Answer 1

Answer:

blue

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Answer 2

Answer:

blue

Due to complete combustion, the outer zone is blue. This zone is the hottest in temperature when compared to the other zones. This blue coloured zone is the non-luminous part of the flame. The yellow colour region which is the bright part of the flame is the middle zone.

Explanation:

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