Chemistry

Give a chemical test to distinguish between Ethane, ethene and ethyne.

Organic Chemistry

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Answer

Chemical tests to distinguish between Ethane, Ethene and Ethyne:

Sl.
No.
TestEthaneEtheneEthyne
1.On adding a few drops of bromine solution in carbon tetrachloride (CCl4) to the hydrocarbonNo change is observed.The reddish brown colour of bromine solution get decolourised.The reddish brown colour of bromine solution get decolourised.
2.On adding a few drops of ammoniacal cuprous chloride (CuCl2) to the hydrocarbonNo change is observed.No change is observed.Red precipitate of copper acetylide is formed.

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