The alkynes reaction with bromine water is explained below:
Both alkynes and alkanes can decolorize bromine water.
The reaction of alkenes and alkynes with bromine water can be used as a visual inference for differentiating between alkanes ,alkenes and alkynes, in which alkanes do not react quickly with bromine, while alkanes and alkynes react quickly to decolorize bromine water.
For example, the reaction between acetylene and bromine water is explained below:
Therefore, the above points and detailed diagram clearly explains the decolorization of bromine water by the addition of alkyne
