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Question

The information in which alternative correctly labels the figure?

A
i- Hottest
ii- Least hot
iii- Moderately hot
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B
i- Hottest
ii- Moderately hot
iii- Least hot
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C
i- Least hot
ii- Moderately hot
iii- Hottest
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D
i- Least hot
ii- Hottest
iii- Moderately hot
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Solution

The correct option is B i- Hottest
ii- Moderately hot
iii- Least hot

A candle flame consists of three zones: the outermost zone, the middle zone, and the innermost zone. The outermost zone of a candle flame is the zone of complete combustion. Therefore, it is the hottest. The middle zone is moderately hot, and the innermost zone only has unburnt wax. Thus, the innermost zone is the least hot zone.

The correct answer is option 'b'.


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