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

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Question

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

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Solution

Unsaturated hydrocarbons, such as acetylene have high percentage of carbon. They have a higher percentage of carbon as compared to corresponding alkanes and alkenes. When ethyne is burned in air, it does not get completely oxidised, thereby producing a sooty flame.

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Chapter 4: Carbon And Its Compounds - Exercise 3 [Page 317]

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Lakhmir Singh Chemistry [English] Class 10
Chapter 4 Carbon And Its Compounds
Exercise 3 | Q 5. | Page 317
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