how can you distinguish acetylene and ethene in laboratory ?
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Acetylene molecule have acidic hydrogen and thus reacts with basic cuprous chloride soln to give red ppt of copper acetylide. Ethylene doesn't have acidic hydrogen and thus don't react with ammoniacal cuprous chloride.
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These two are Hydrocarbons
Acetylene and Ethene can be distinguished by simple chemical tests
When ethyne is bubbled through ammoniacal silver nitrate solution , a yellow-white precipitate of silver acetylide would be formed.
Similarly, ethyne forms a red precipitate of copper acetylide when it is passed through ammoniacal cuprous chloride solution.
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