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Alkenes have a double bond between the carbon atoms (C=C) whereas alkanes have a single bond (C-C). so alkenes are unsaturated compounds, add aqueous solution of Bromine or KMnO4 to both the compounds the decolourization of these reagents confirms the presence of alkenes.

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14y ago
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2w ago

One way to distinguish between an alkane and an alkene is to react them with bromine water. Alkanes do not react with bromine water, while alkenes undergo a decolorization reaction with bromine water. The chemical equations for these reactions are:

Alkane: CnH2n+2 + Br2 -> No reaction

Alkene: CnH2n + Br2 -> CnH2nBr2

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14y ago

alkens react with kmno4 solution and produce glycose which disorderd the colour of kmno4.

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11y ago

Alkenes will decolourize the colour of bromine water and KMnO4. Alkanes will not.

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13y ago

We can distinguish through bromine water.

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Q: What are the Chemical equations to distinguish between alkane and alkene?
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