Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot. The slideshow shows this process.

The questions in this quiz are suitable for GCSE chemistry students studying crude oil and hydrocarbons separating crude oil and cracking and alkenes. If you struggled with the quiz, don't panic ...

This reaction proceeds at room temperature and does not require sunlight or UV radiation to initiate it. The rapid disappearance of the amber color of the bromine at room temperature is characteristic ...

This versatile method simplifies the production of valuable alkenes from abundant feedstock chemicals including carboxylic ...