Summarising all mechanisms for A Level Chemistry

This resource, which is ideal for revision, summarises all the mechanisms required for A Level Chemistry. This is suitable for the new specification where students are now expected to recall any of the mechanisms from the two year course.

The resource covers examples of each mechanism that includes the different reagents they can be asked about leading to variations in some mechanisms.

There are also several common key questions that are covered such as quaternary ammonium salts, comparing carbocation intermediates, understanding why racemic mixtures form and how optical isomers can be distinguished.
All answers are given too so students can self-assess or peer-assess their responses.

The eight mechanisms covered are:
In AS Level…
1. Nucleophilic substitution (also covered in 2nd year)
2. Elimination
3. Electrophilic addition
4. Free radical substitution
5. Free radical addition (products from reactants and vice-versa only)

In 2nd year…
6. Nucleophilic addition
7. Nucleophilic addition-elimination
8. Electrophilic substitution