The standard reduction potentials of two metals A and B are -0.76 V an

1.	The standard reduction potentials of two metals A and B are -0.76 V and + 0.34 V respectively. An electrochemical cell is formed using electrodes of these metals;(i) Identity the cathode and anode(ii) Write the direction of flow of electron.
Answer» (i) Standard reduction potential of A i.e. E^Θ _A+/A = – 0.76 V Standard reduction potential of B i.e. E^Θ _Bn+/B = + .34 V The electrode having more negative value of E^Θ acts as anode and the other one acts as cathode. Hence metal B acts as cathode as cathode. Hence, metal B acts as cathode and A acts as anode. (ii) The flow of electrons taken place from anode to cathode.

The standard reduction potentials of two metals A and B are -0.76 V and + 0.34 V respectively. An electrochemical cell is formed using electrodes of these metals;(i) Identity the cathode and anode(ii) Write the direction of flow of electron.

Answer»

(i) Standard reduction potential of A

i.e. E^Θ _A+/A = – 0.76 V

Standard reduction potential of B

i.e. E^Θ _Bn+/B = + .34 V

The electrode having more negative value of E^Θ acts as anode and the other one acts as cathode. Hence metal B acts as cathode as cathode. Hence, metal B acts as cathode and A acts as anode.

(ii) The flow of electrons taken place from anode to cathode.

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The standard reduction potentials of two metals A and B are -0.76 V and + 0.34 V respectively. An electrochemical cell is formed using electrodes of these metals;(i) Identity the cathode and anode(ii) Write the direction of flow of electron.

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