First slide

Activity Series (OR) Electro chemicals series

Question

Select the correct cell reaction of the cell $Pt (s) |{Cl}_{2} (g)| {Cl}^{-} (aq) ∥ {Ag}^{+} (aq) ∣ Ag (s) :$

Easy

A

${Cl}_{2} (g) + {Ag}^{+} (aq) ⟶ Ag (s) + 2 {Cl}^{-} (aq)$
B

${Cl}_{2} (g) + Ag (s) ⟶ 2 {Cl}^{-} (aq) + {Ag}^{+} (aq)$
C

$2 {Cl}^{-} (aq) + 2 {Ag}^{+} (aq) ⟶ 2 Ag (s) + {Cl}_{2} (g)$
D

$AgCl (s) ⟶ {Ag}^{+} (aq) + {Cl}^{-} (aq)$

Solution

$Anode : {Cl}_{2} (g) ⇌ 2 {Cl}^{-} (aq) + 2 e^{-} \underset{___________________________________Net reaction : {Cl}_{2} (g) + 2 {Ag}^{+} (aq) ⇌ 2 {Cl}^{-} (aq) + 2 Ag (s)}{Cathode : 2 {Ag}^{+} (aq) + 2 e^{-} ⇌ 2 Ag (s)}$

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