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ICSE Class 10 Answered

Which is oxidising  and reducing electrode Give reasons
Asked by lovemaan5500 | 28 Jan, 2018, 08:50: PM
answered-by-expert Expert Answer
There are only two electrodes in electrolysis:
Cathode: The electrode at which reduction takes place with respect to standard hydrogen electrode has reduction potential which is given a positive sign.
Anode: The electrode at which oxidation takes place with respect to standard hydrogen electrode has a positive oxidation potential or expressed as reduction potential, it will have a negative sign.
 
Thus, in the electrochemical series,
The metals which have positive or larger reduction potential can behave as good oxidizing agent. Hence they act as a cathode. 
The metals which have negative reduction potential can behave as good reducing agent. Hence they can act as an anode. 
Answered by Ramandeep | 29 Jan, 2018, 01:02: PM

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