Question

Anu wants to boil water quickly in a test tube on observing the different zones of flame​

Answer 1

Answer:

There are three different zones of a flame. In the outer zone of a flame, complete combustion of the fuel takes place because there is plenty of air around it, so water in a test tube will boil quickly in this zone. Due to complete combustion, the outer zone is blue.

Explanation:

Anu should boil the water the hottest zone of the of the flame, which is non luminous zone or the outermost zone of the flame.

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