- A yellow sooty flame is a characteristic sign of incomplete combustion. - 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.
Naphthalene burns with a yellow sooty flame. This is because
Asked in UPSC CDS 1 2023 · Topic: Hydrocarbons (Aromatic Hydrocarbons: Concept of Aromaticity (Hückel's Rule), Resonance Structures)
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