Check sibling questions

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that:

(a) the food is not cooked completely.

(b) the fuel is not burning completely.

(c) the fuel is wet.

(d) the fuel is burning completely.

 

Answer:

THE BOTTOM OF THE VESSELS BLACKENS DUE TO INCOMPLETE COMBUSTION - Teachoo.jpg

When the fuel is not burning completely then sooty flame appears. This happens because of lack or incomplete supply of oxygen leads to incomplete combustion of fuel and makes the vessel black.

So, the correct answer is (b) -  the fuel is not burning completely

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo