Q.
Three faraday of electricity is passed through three electrolytic cells connected in series containing Ag+,Ca2+ and Al3+ ions respectively. The molar ratio in which the three metal ions are liberated at the electrodes is
for 1 mole electrons =1 faraday ⟶1 mole of Ag+
for 1 mole electrons =1 faraday ⟶21 mole of Ca2+
for 1 mole electrons =1 faraday ⟶31 mole of Al3+
So for 3 faraday →1×3,21×3,31×3 3:23:1 or 6:3:2