Identify the anode,cathode,positive electrode | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In an electrochemical cell,the anode is the electrode where oxidation occurs,and the cathode is where reduction occurs. For the $Daniell$ cell $(Z

Vedclass · Accepted Answer

$Daniell$ cell: Anode $(Zn)$,Cathode $(Cu)$,Positive $(Cu)$,Negative $(Zn)$; $Cu-Ag$ cell: Anode $(Cu)$,Cathode $(Ag)$,Positive $(Ag)$,Negative $(Cu)$

Vedclass · Answer

(A) In an electrochemical cell,the anode is the electrode where oxidation occurs,and the cathode is where reduction occurs. For the $Daniell$ cell $(Zn|Zn^{2+}||Cu^{2+}|Cu)$: $Zn$ acts as the anode (negative electrode) and $Cu$ acts as the cathode (positive electrode). For the $Copper-Silver$ cell $(Cu|Cu^{2+}||Ag^+|Ag)$: $Cu$ acts as the anode (negative electrode) and $Ag$ acts as the cathode (positive electrode). Therefore,the correct configuration is: $Daniell$ cell: Anode $(Zn)$,Cathode $(Cu)$,Positive $(Cu)$,Negative $(Zn)$; $Cu-Ag$ cell: Anode $(Cu)$,Cathode $(Ag)$,Positive $(Ag)$,Negative $(Cu)$.

Identify the anode,cathode,positive electrode,and negative electrode for the $Daniell$ cell $(Zn-Cu)$ and the $Copper-Silver$ $(Cu-Ag)$ cell.

Similar Questions

The $Cu^{+}$ ion is not stable in aqueous solution. For the disproportionation reaction,what is the $E^o$ value in $V$? (Given: $E^o_{Cu^{2+} | Cu^{+}} = 0.15 \, V$; $E^o_{Cu^{2+} | Cu} = 0.34 \, V$)

For the Galvanic cell:
$Ag_{(s)} \, | \, Ag_2C_2O_{4(s)} \, | \, C_2O_4^{2-} (0.02 \ M) \, || \, Ag^{+}(0.5 \ M) \, | \, Ag_{(s)}$
$EMF$ of the cell is $0.264 \ V$ at $25 \ ^oC$. The $K_{sp}$ of $Ag_2C_2O_{4(s)}$ is:
$[Given: \frac{2.303RT}{F} = 0.06, \ \log 2 = 0.3]$

Which of the following statements is not true for a fuel cell?

Which of the following net cell reactions occurs in a galvanic cell containing a cadmium electrode and a standard hydrogen electrode? Given: $E^0_{(Cd^{2+}(aq)|Cd(s))} = -0.403 \text{ V}$.

In a dry cell,the reaction which takes place at the zinc anode is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module