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why only platinum electrolytes are used in conductivity cell

Asked by hkchary.bhc 10th December 2018, 8:41 PM
Answered by Expert
Features of a good electrode (wrt Pt) - 
1) good electrical conductor so it is usually a metal.
2) Some reactions require an inert electrode that does not participate and platinum is a inert metal
3) Platinum is added to the cell diagram/redox reaction when there is no solid already in the anode or in the cathode of the cell.
4) Pt provides a large surface area and thus acts a catalyst by adsorbing H2 gas (SHE/NHE-Concentration cells)
Answered by Expert 11th December 2018, 6:36 AM
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