Why does bromine water become colourless upon the addition of ethene, but not ethane? What is this reaction called?
Bromine water reacts with ethane as it is able to break open the double bond, forming 1,2-dibromoethane. This double bond is not present in ethane, so bromine water does not react with it. This reaction is known as electrophilic addition.
OA
Related Chemistry A Level answers
All answers ▸How does the reducing ability of halide ions vary?
What is the relationship between K and ΔS total?
The boiling points of ammonia (NH3), fluorine (F2) and bromine (Br2) are -33, -188 and +59 degrees celsius respectively. Explain the differences in these boiling points, including the names of any relevant forces and particles.
Explain in detail what do you understand by catalyst, what makes them so useful and give two example of catalytic processes including the name catalyst used.