Which of the following is the most reactive towards bromine?
Answer Details
Bromine is a halogen, which means it has a high electronegativity and is very reactive towards compounds with lower electronegativities. In this case, we are looking for the compound that is most likely to react with bromine.
Methane, benzene, ethyne, and hexane are all hydrocarbons, which means they are composed of hydrogen and carbon atoms. However, they differ in their chemical structures and properties.
Out of these options, ethyne (also known as acetylene) is the most reactive towards bromine. This is because it has a triple bond between its two carbon atoms, which makes it more susceptible to reactions with other compounds. The triple bond is composed of two pi bonds and one sigma bond, and the pi bonds are more easily broken, allowing ethyne to react with bromine more readily.
In contrast, methane and hexane have only single bonds between their carbon atoms, which makes them less reactive towards bromine. Benzene has a delocalized ring of electrons, which makes it more stable and less likely to react with other compounds, including bromine.