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Q.
Which of the following compound does not decolourise bromine-water solution ?
NTA AbhyasNTA Abhyas 2022
Solution:
The bromine water test is a qualitative test, used to identify the alkene, alkyne or alkane functional groups present in the compound. Alkenes and alkynes react with bromine water in the dark condition and undergo an addition reaction, to give a decolourized solution. Cyclo propane ring is very unstable, behaves like an alkene and gives the test with bromine water.