Redox and electrolysis

Free ESAT Chemistry lesson. Worked examples, common mistakes and a self-check.

What the lesson covers

Oxidation and reduction as oxygen transfer (C5.1)
Oxidation and reduction as electron transfer (C5.2)
Oxidation states (C5.3, C5.4)
Oxidising and reducing agents, displacement and disproportionation (C5.5, C5.6)
Electrolysis: the idea and the apparatus (C12.1 to C12.3)
Predicting the products (C12.4, C12.5)
Electroplating and extraction of aluminium (C12.6, C12.4)
Self-check questions with answers (8)

Specification: C5.1-5.6, C12.1-12.6. Codes follow the UAT-UK ESAT content specification.

How to use it

Read a section, then cover the worked example and try it yourself.
Check the common mistakes list: these are the slips the real test is built to catch.
Do the self-check without looking back. Mark it against the answers.
Then practise the topic under time, with the matching practice set.

Previous: Concentration, gas volumes and yield Next: Bonding, structure and particles

Heurisco is an independent practice provider and is not affiliated with, endorsed by, or connected to UAT-UK, Pearson VUE, the UCAT Consortium, or any university.