Question

Following reactions are taking place in a Galvanic cell,

$Zn \rightarrow Zn^{2 +} + 2e^{-};Ag^{+} + e^{-} \rightarrow Ag$

Which of the following given representation is the correct method of depicting the cell?

• A. $Zn_{(s)}|Z{n^{2 +}}_{(aq)}||A{g^{+}}_{(aq)}|Ag_{(s)}$
• B. $Zn^{2 +}|Zn||Ag|Ag^{+}$
• C. $Zn_{(aq)}|Z{n^{2 +}}_{(s)}||A{g^{+}}_{(s)}|Ag_{(aq)}$
• D. $Zn_{(s)}|A{g^{+}}_{(aq)}||Z{n^{2 +}}_{(aq)}|Ag_{(s)}$

Answer 1

Answer: (A)

$Zn_{(s)}|Z{n^{2 +}}_{(aq)}||A{g^{+}}_{(aq)}|Ag_{(s)}$

Answer 2

$Zn + 2Ag^{+} \rightarrow Zn^{2 +} + 2Ag$ can be represented as

$Zn_{(s)}|Zn_{(aq)}^{2 +}||Ag_{(aq)}^{+}|Ag_{(s)}$