Single Answer MCQ
Q-00040016
When a flame produces a lot of smoke, what does it indicate?
1
Complete combustion
2
Incomplete combustion
3
Excess oxygen
4
High energy release
Answer and Solution
Answer
B. Incomplete combustion
Solution:
A lot of smoke indicates incomplete combustion, meaning not enough oxygen is available for the carbon in the fuel to convert fully into carbon dioxide, often resulting in soot formation.
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