Saturated hydrocarbons burn with a blue flame while unsaturated hydrocarbons burn with a sooty flame.Why??
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It is because saturated Hcarbon has less no. Of carbon compared to Unsaturated so carbin atoms of saturate oxidise completely and burn with Good flam .
If unsaturated burn in Good supply of oxygen then no residue will be left
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Unsaturated hydrocarbons like ethyne, also known as acetylene, burn to produce a yellow, sooty flame due to incomplete combustion in air. The flame is sooty because the percentage of carbon is comparatively higher than that of alkanes and so does not get completely oxidized in air.
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