Vapourised wax gets oxidised in –

Blue zone

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Dark zone

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Luminous zone

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Middle zone

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Solution

The correct option is A Blue zone
It is in this outermost zone that complete combustion of vapourised wax takes place giving blue colour to the zone.

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Similar questions

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

Column A	Column B	Column C
(a) Hottest part	(i) Innermost zone of unburnt wax vapors	(x) blue
(b) Moderately hot	(ii) Middle zone of partial combustion	(y) black
(c) Least hot	(iii) Outer zone of complete combustion	(z) yellow

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