Question

Classify burning of kerosene in a lantern as a physical or chemical change. Give reasons.

Answer 1

Hint :This kerosene used as an oil heater could be dangerous. When this is heated, this kerosene in lanterns causes degradation of air quality near their area, where it will produce carcinogenic gases. The widespread use of kerosene lamps comes with various different issues in developing countries.

Complete Step By Step Answer:
Burning of a kerosine is a chemical change because of the production of new substances. Around one kilogram of black carbon is produced as a result of the by -product of incomplete combustion which absorbs light and heats the atmosphere. It gives out carbon- dioxide. Kerosene lamps are among the most polluting devices used on earth. Due to the black carbon, they get flames so bright and are generated by burning kerosene.
This whole acts as a pollutant. Kerosene lanterns are simply lanterns that are used by many households in rural areas of India to light up their houses at night when there is power cut. Worldwide it is estimated that billions of people use kerosene or other similar oil as the primary source of fuel for lighting. The widespread use of kerosene lamps comes with various different issues in developing countries. It could result in poisoning, or fires, or even big explosions. Some kerosene are found to produce hazardous substances like carbon monoxide, nitric oxides and sulphur dioxide when burned.

Note :
Not only environmental effects, but it also affects normal breathing causing high risk of asthma and cancer. If the fuel is mishandled, It can be dangerous for eye, skins and even respiratory systems and can cause a lot of problems.