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This video is Part 1 of a two parts series on the Selective Discharge of Ions in Electrolytic Cells.

It is based on what we share with our Secondary 4 GCE OLevel Pure Chemistry and IP Chemistry students in our weekly Sec 4 Pure Chemistry Tuition Classes.


In an aqueous solution, more than one type of cation and anion are present in the electrolyte. However, only one cation and one anion are preferentially or selectively discharged during the process of electrolysis.



If the electrodes used during electrolysis are inert, the ions being preferentially discharged will depend on three factors:



1) Selective Discharge of Cations

2) Selective Discharge of Anions

3) Effect of Concentration on the Selective Discharge of Anions



All the three factors will be clearly explained in a stepbystep manner and examples will be given so that you can apply immediately.



To learn more about Electrolysis and other basic Chemistry concepts, visit our blog at www.SimpleChemConcepts.com

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For more O Level Pure Chemistry. IP Chemistry learning resources, go to https://www.SimpleChemConcepts.com