What does a yellow, smoky flame generally indicate?
Answer and explanation
Correct answer: Incomplete combustion
A yellow, smoky flame indicates that the fuel is not receiving enough oxygen, so it undergoes incomplete combustion. Fine carbon particles, called soot, are produced and make the flame yellow and smoky. In contrast, complete combustion with sufficient oxygen generally produces a cleaner blue flame.
Frequently asked questions
What is the correct answer to this question?
Incomplete combustion
Why is this the correct answer?
A yellow, smoky flame indicates that the fuel is not receiving enough oxygen, so it undergoes incomplete combustion. Fine carbon particles, called soot, are produced and make the flame yellow and smoky. In contrast, complete combustion with sufficient oxygen generally produces a cleaner blue flame.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Carbon and its Compounds.
