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A flame is the visible gaseous part of a...

A flame is the visible gaseous part of a fire. It is a zone of combustion of gaseous substances accompanied by evolution of heat and light. All substances do not burn with a flame. Only those substances that vaporise during burning produce flame. A candle flame is taken to study the various zones of a flame.

The luminous and non-luminous zones of flame is respectively.

A

Outermost, middle zone

B

Innermost, outermost zone

C

Middle, outermost zone

D

Outermost, innermost zone

Text Solution

Verified by Experts

The correct Answer is:
C
Outermost zone is a non-luminous zone, middle zone is a luminous zone of partial combustion.
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