Question

a reagent which can distinguish between ethane and ethene

Answer 1

There is no way (except using an electron microscope) to specifically distinguish betweene ethane and propene, although there are certain ways to distinguish between alkane and alkene

If you are given that the to compounds are only ethane and propene, you can easily use bromine water test to distinguish between alkane and alkene, the alkane will be ethane and alkene will be propene

Answer 2

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