What is a radical?

A species with an unpaired electron, that is very reactive. For example, oxygen radicals involved in ozone depletion.

ES

Related Chemistry A Level answers

All answers ▸

State and explain the general trend in first ionisation energy across Period 3


How to we increase the rate of a reaction?


Name and draw the mechanism by which benzene reacts with ethanoyl chloride in the presence of a catalyst. Also explain why benzene undergoes a substitution reaction, rather than an addition reaction.


Without a catalyst, an alkene will react with bromine while benzene will not. Why is this?