Which zone is very hot, with a blue flame and oxidises the fuel completely?

Dark zone

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Luminous zone

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Non-luminous zone

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Blue zone

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Solution

The correct option is C
Non-luminous zone

Non - luminous zone contains blue flame which oxidizes fuel completely.

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Similar questions

	Column I		Column II
(a)	Hottest zone of a candle flame	(i)	Zone of unburnt wax vapours
(b)	Yellow zone of a candle flame	(ii)	Non-luminous zone
(c)	Black innermost zone of the candle flame	(iii)	Incomplete combustion zone

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