Key term for OCR GCSE Chemistry A, used in Practical Activity Groups.
A diatomic molecule (H₂) produced at the cathode during electrolysis if the metal ions in the solution are more reactive than hydrogen.
Hydrogen gas appears in OCR GCSE Chemistry A revision content for Practical skills, especially Practical Activity Groups and Electrolysis Practical.
Create a free account to access OCR GCSE Chemistry A revision notes, track progress, and practise related key terms.
