Question

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

Answer 1

Answer:

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

Explanation:

Answer 2

Ethyne (acetylene) burns with a sooty flame due to the incomplete combustion of air.

Explanation:

• Unsaturated hydrocarbons such as Ethyne, also called as acetylene, which burns  to form  a yellow colour, sooty flame because of the  incomplete combustion of air.
• The flame formed is comparatively sooty because of  the percentage of carbon (C atom)i.e carbon atom percentage is comparatively higher than alkanes and so it wont get oxidized in air completely.
• When acetylene and oxygen burns together, a non-sooty, blue colour flame is evolved.

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