Question

Define flame and write three zones of flame of a lighted Candle.​

Answer 1

Answer:

The outer zone is blue in color, due to complete combustion,. This zone is the hottest zone. The middle one is in yellow color, which is the bright part of the flame. It is moderately hot and partial combustion of fuel takes place. The least hot region of theflame is innermost zone.

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Answer 2

Answer:

Flame is a region where the burning or combustion of gaseous substances take place. ... Those substances which provide energy on burning are called 'fuels'; e.g., coal, petroleum, LPG, etc. Question 14. Give two examples each of solid fuels, liquid fuels and gaseous fuels.

The outer zone is blue in color, due to complete combustion,. This zone is the hottest zone. The middle one is in yellow color, which is the bright part of the flame. It is moderately hot and partial combustion of fuel takes place. The least hot region of the flame is innermost zone.