Question

Identify the following part / zone of a candle flame :
(d) The zone which contains unburnt carbon particles
(c) The zone which contains unburnt vapours of wax
(e) Zone of complete combustio
(f) Zone of partial combustion
(b) Coldest part
(a) Hottest part​

Answer 1

There are 3 different zones in a candle flame, below are the answers according to specification:

(d) The zone which contains unburnt carbon particles

• The unburnt carbon particles are present in the luminous middle zone of the candle flame which help in forming the circular dark rings.

(c) The zone which contains unburnt vapours of wax

• The unburnt vapour of wax is present in the innermost or the dark zone of the candle flame.

(e) Zone of complete combustion

• The outer zone which is blue in colour is said to be the zone of complete combustion.

(f) Zone of partial combustion

• The middle zone which is yellow in colour has partial combustion of fuel.

(b) Coldest part

• The innermost zone of the candle flame us termed as the coldest zone, it is black in colour.

(a) Hottest part

• The Outer zone is regarded are the hottest zone because of complete combustion.