A-Level
EDEXCEL
Chemistry
May 2022
2 Marks
QP-202205-Chemistry-U5 · Question 2
Question (excerpt):
2 This question is about alkaline hydrogen-oxygen fuel cells. (a) What is the half-equation at the negative electrode? (1) A H2(g) + 2OH−(aq) → 2H2O(l) + 2e− B 2H2O(l) + 2e− → H2(g) + 2OH−(aq) C O2(g)…
2 This question is about alkaline hydrogen-oxygen fuel cells. (a) What is the half-equation at the negative electrode? (1) A H2(g) + 2OH−(aq) → 2H2O(l) + 2e− B 2H2O(l) + 2e− → H2(g) + 2OH−(aq) C O2(g)…
Question Slice Image
Official Mark Scheme & Solution
The official answer and mark scheme are available to signed-in users in the PaperAce App.