Differenciate between phenol and benzoic acid using bromine water
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Phenol reacts with bromine in carbon disulphate at low temperature to give o-and p-bromophenol. .
Neutral FeCl3 test regents may be used to distinguish between phenol and benzoic acid as Phenol will give violet coloration but benzoic acid will not give coloration with neutral FeCl3.
* Aqueous bromine can only decolourise C=C double bonds in alkenes (with no ppt.) and phenols (with white ppt.). No thats not possible, bromine water can only decolourise alkenes not carboxylic acids. the C=O bond is nt broken at all.
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Phenol and Benzoic acid cannot be distinguished using Bromine water.
- The difference between phenol and benzoic acid cannot be determined by the bromine water test, since phenol is alcohol while benzoic acid is an acid.
- The bromine water test is used to test saturation, meaning it can be used to separate alkanes from alkenes or alkynes.
- Sodium bicarbonate is the best way to tell the difference between an alcohol and an acid.
- Acids give a brisk effervescence when they react with sodium bicarbonate, but alcohols do not.
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