Question

Unsaturated hydrocarbon give a yellow flame with a lot of black smoke when burnt in oxygen give reason

Answer 1

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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Answer 2

yes because triple or double bond is called un saturated hydrocrabon