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Question

The bottom of cooking vessels gets blackened when used on gas/kerosene stove on due to:


A

Incomplete combustion of fuel

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B

Over combustion of fuel

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C

Complete combustion of fuel

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D

None of the above

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Solution

The correct option is A

Incomplete combustion of fuel


The bottom of cooking vessels gets blackened due to incomplete combustion of fuel leading to the formation of soot. This soot when accumulates on the vessels blackens them. Incomplete combustion is a result of the partial burning of fuel, due to lack of oxygen.


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