Question

While cooking, if the bottom of the utensil 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 1

Answer:

d)

Explanation:

hope it helps...........

Answer 2

Oxygen is Necessary for Combustion

Explanation:

• On cooking food in a vessel, the bottom of the vessel gets blackened then either the fuel isn't burning completely or we can say that there is incomplete combustion.

• Incomplete combustion can be observed when there is either not enough oxygen for burning (Oxygen supports combustion)