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Combustion Reactions

While cooking...

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Question 3
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

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Solution

The answer is (b). While cooking, if the bottom of the vessel is getting blackened on the outside, it means that the fuel is not burning completely.

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Similar 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.

Q. 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.

Q. Question 15
Shyam was cooking potato curry on a chulha. To his surprise, he observed that the copper vessel was getting blackened from outside. It may be due to:

(a) proper combustion of fuel
(b) improper cooking of potato curry.
(c) improper combustion of the fuel.
(d) burning of copper vessel.

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

Q. The bottom of cooking vessels gets blackened when used on a gas/kerosene stove due to incomplete combustion of the fuel.

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