ElectrolysisMemory Aid

Memory Aids

Part of Electrolysis of Molten Compounds · GCSE GCSE Chemistry revision

This memory aid covers Memory Aids within Electrolysis of Molten Compounds for GCSE Chemistry. Revise Electrolysis of Molten Compounds in Electrolysis for GCSE Chemistry with 21 exam-style questions and 14 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 8 of 11 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.

Topic position

Section 8 of 11

Practice

21 questions

Recall

14 flashcards

🧠 Memory Aids

CATions go to the CAThode, ANions go to the ANode

Both "CATion" and "CAThode" start with "CAT". Both "ANion" and "ANode" start with "AN". This makes it easy to remember which ion goes where.

OIL RIG — Oxidation Is Loss (of electrons), Reduction Is Gain (of electrons)

At the Anode = Oxidation (A and O are both vowels!)

At the Cathode = Reduction (both contain the letter C!)

For predicting molten products: "Metal at the Minus, Non-metal at the Plus" — cathode is negative (minus) → metal; anode is positive (plus) → non-metal.

Keep building this topic

Read this section alongside the surrounding pages in Electrolysis of Molten Compounds. That gives you the full topic sequence instead of a single isolated revision point.

Common Misconceptions Exam Focus Breaking Free — The Prison Break of Ions Electrolysis Cell — Click to Explore

Practice Questions for Electrolysis of Molten Compounds

Which condition is required for electrolysis to occur with an ionic compound?

A. The ions must be free to move (molten or in solution)
B. The compound must be dissolved in organic solvent
C. The compound must be heated above 1000 °C
D. The compound must contain metallic bonds

1 markfoundation

State the products formed at each electrode when molten lead bromide (PbBr₂) is electrolysed.

2 marksstandard

Quick Recall Flashcards

Why does solid lead bromide NOT conduct electricity?

In the solid state, all ions (Pb²⁺ and Br⁻) are held in fixed positions in the ionic lattice by strong electrostatic forces. They cannot move, so they cannot carry electrical charge.

How do you remember that cations go to the cathode?

CATions → CAThode (both start with CAT) ANions → ANode (both start with AN) Metal at the Minus (cathode is negative), Non-metal at the Plus (anode is positive).

21 questions on Electrolysis of Molten Compounds — practise free

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Common Misconceptions

Exam Focus