Question

Rama observes that the vessel used for cooking gets a black layer of soot even though she is using an LPG stove. What could be the reason for this?​

Answer 1

Answer:

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that the fuel is not burning completely. When the fuel burns completely giving a blue flame, the bottom of the vessel remains clean.

When the fuel does not burn completely then a sooty flame appears which makes the bottom of the utensil black. It is due to the air holes, which are getting blocked and the fuel does not burn completely.

Explanation:

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