Multiple choice

In which of the following zones of candle flame, partial combustion takes place?

  1. Luminous zone

  2. Non luminous zone

  3. Combustible zone

  4. Dark zone
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A Correct answer
Explanation

In the luminous zone (middle zone) of a candle flame, partial combustion takes place. The hydrocarbons from the wax break down but do not fully oxidize, leaving tiny carbon particles that heat up and glow, producing the yellow luminous zone before reaching complete combustion in the outer zone.

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