The different zones of a candle flame are marked by the letters A, B and C.

Which of the following is correct with respect to the zones of the candle?

Zone A is the hottest part of the flame.

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Zone B is moderately hot.

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Zone B is the hottest part of the flame.

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Zone C is moderately hot.

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Solution

The correct option is C Zone B is the hottest part of the flame.
$∙$ Zone A of the flame undergoes complete combustion. So, this is the hottest part of the flame.
$∙$ Zone B undergoes partial combustion. So, this zone is moderately hot.
$∙$ Zone C is the innermost part of the flame with unburnt wax vapours. So, it is the least hot zone of a flame.

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Similar questions

The outermost zone of a candle flame is the :

(a) least hot part

(b) coldest part

(d) moderately hot part

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

Which zone of a candle flame is the hottest ?

Explain the different zones observed in a candle flame. Which one of them is the hottest zone? [5 MARKS]

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