Question

Why does ethyne (acetylene) burn with a sooty flame ?

Lakhmir Singh Chemistry Class 10

Answer 1

Unsaturated hydrocarbons likeethyne, also known as acetylene,burn to produce a yellow, sooty flame due to incomplete combustion in air. ... However, when acetylene and pure oxygenburn, a non-sooty, blue flame is produced. This is also known as oxi-acetylene flame and it is used for cutting and welding metals.
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