JAMB Chemistry 1998 Question 22

1.2F of electricity are passed through electrolytic cells containing Na⁺, Cu²⁺ and Al³⁺ in series. How many moles of each metal would be formed at the cathode of each cell?

1. A.0.6 mole of Na, 1.2 moles of Cu and 1.2 moles of Al
2. B.1.2 moles of Na, 0.6 mole of Cu and 0.4 mole of Al
3. C.1.2 moles of Na, 2.4 moles of Cu and 2.4 moles of Al
4. D.1.2 moles of Na, 2.4 moles of Cu and 3.6 moles of Al.