Q.

The outer zone of the flame is the hottest part of the candle flame because of

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a

Complete combustion

b

Presence of unburnt wax

c

Partial combustion

d

None of the above.

answer is A.

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Detailed Solution

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  • The outer zone of the flame is the hottest part of the candle flame because of complete combustion.
  • The temperature of different zones are:
ZoneTemperatureCombustion
Outer zoneHottestComplete combustion
Middle zoneMedium hotPartial combustion
Inner zoneLeast hotUnburnt
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