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

Answer

Ethyne (acetylene) burn with a sooty flame because ethyne is an unsaturated hydrocarbon and the percentage of carbon in these hydrocarbons is comparatively higher which does not get oxidised completely in oxygen of air.

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Similar questions

Identify the type of reactions in each of the following reaction:

  1. $\text{Fe}_2\text{O}_3\ +\ 2\text{Al(s)}\ \xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ \ }\text{Al}_2\text{O}_3(\text{s})\ +\ 2\text{Fe(t)}$

  2. $2\text{FeSO}_4(\text{s})\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{Fe}_2\text{O}_3\ +\ \text{SO}_2(\text{g})\ +\ \text{SO}_3(\text{g})$

  3. $\text{NH}_3(\text{g})\ +\ \text{HCl(g)}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{NH}_4\text{Cl(s)}$

  4. $\text{CuSO}_4(\text{aq})\ +\ \text{H}_2\text{S(g)}\xrightarrow{\ \ \ \ \ \ \ \ \ \ }\text{CuS(s)}\ +\ \text{H}_2\text{SO}_4(\text{aq})$

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