What substances produce flames?

Some of the substances which burn by producing flames are LPG, CNG, biogas, wax, camphor, magnesium, kerosene oil, mustard oil. If we heat magnesium ribbon over a burner,we find that the magnesium ribbon burns by producing a brilliant white flame. Wax candle and kerosene oil lamp have wicks.

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Consequently, what makes the middle zone of a candle flame luminous or light giving?

Answer: Explanation:The middle zone of the candle flame is luminous because there is not enough air for complete burning of the wax vapour. The incomplete burning of wax vapour produces carbon particles and carbon monoxide. It is the glow of hot carbon particles which makes the middle zone of a flame luminous. Why is candle flame blue? When a flame does not get enough oxygen, it tends to undergo "incomplete" combustion, resulting in larger exhaust products (usually carbon compounds). This causes the exhaust to look more orange due to incandescence. As the flame becomes more saturated, its color turns to blue.

Also, what are the main parts of candle flame?

Structure of a Candle Flame A candle flame has 3 parts - innermost zone, middle zone and outer zone. It is the innermost zone. It is least hot part of flame. It is unburnt part of flame containing wax vapours as combustion is not completed because of lack of oxygen. It is the Luminous Zone (it means that it produces light) One may also ask which is the coldest part of a candle flame? The Innermost zone of a flame is dark or black:It consist of hot,unburnt vapours of the combustible material.It is the least hot part of the flame.It is the coldest part of the flame.

You can also ask why burning of candle is exothermic?

The wax is burning and turning into carbon dioxide and water. In the process, it gives off heat (and light). Giving off of heat makes it exothermic (heat exits the reaction... exothermic). What flame contains? The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma.