An organic compound reacted with bromine water to give a colourless solution. The compound is probably an?
-
alkene
- alkanal
- alkyl
- alkanone
The correct answer is: A
Explanation
Alkenes react in the cold with pure liquid bromine, or with a solution of bromine in an organic solvent like tetrachloromethane. The double bond breaks, and a bromine atom becomes attached to each carbon. The bromine loses its original red-brown colour to give a colourless liquid.
Alkynes also react with bromine, decolorising it though not as immediate as alkenes.
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