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Classification of Hydrocarbons

Distinguish b...

Question

Distinguish between the following pairs of compounds using the test given within brackets:
Ethane and ethene (using alkaline permanganate solution)

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Solution

We know that potassium permanganate is a self indicator. It is purple coloured. When potassium permanganate is added to ethane purple colour does not fades but when is added to ethene the solution decolourizes.

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