MHT CET2019Evening ShiftChemistryElectrochemistryActual
Standard hydrogen electrode (SHE) is a
Options
- APrimary reference electrode
- BSecondary reference electrode
- CMetal – sparingly soluble salt electrode
- DMetal – metal ion electrode
Correct answer
A. Primary reference electrode
Step-by-step solution
Standard hydrogen electrode (SHE) is primary reference electrode. SHE is represented by P t s H 2 g H + a q , is assigned a zero potential at all temperatures corresponding to reaction. H + ( a q ) + e - → 1 2 H 2 ( g )