Naphthalene burns with a yellow sooty flame. This is because
carbon to hydrogen ratio is low
there is incomplete combustion
there is excess supply of air
of presence of impurities of nitrogen and sulfur
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC CDS-1 – 2023
– Incomplete combustion produces soot (unburnt carbon particles) which glow yellow when hot.
– Fuels with a high carbon-to-hydrogen ratio are more likely to produce sooty flames during incomplete combustion.