Question

The colour of outer zone of candle flame is _________.

A. orange

B. blue

C. red

D. yellow​

Answer 1

B. blue

Explanation:

The candle's flame is divided into three zones: blue on the outside, yellow in the midst, and black on the inside. This is the result of the wax that is formed after the meltdown of the candle.

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Answer 2

Step-by-step explanation:

At the outer zone of candle flame, there are more oxygen available for the combustion reaction. So the flame is yellow in color.

The answer is D. yellow.