CH-1492
Alkenes
Chemistry · Secondary 4 · Medium · Alkenes
Ethene, CH, is used to make poly(ethene). Ethene is described as an unsaturated hydrocarbon.
Which test and observation would confirm that ethene is unsaturated?
Which test and observation would confirm that ethene is unsaturated?
- Shake with orange bromine water; the solution turns colourless.
- Shake with orange bromine water; the solution stays orange.
- Add aqueous sodium hydroxide; a white precipitate forms.
- Add acidified potassium manganate(VII); the purple colour remains.
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