Oxidizing and Reducing Agents. Role of salt bridge. The standard potential for half reaction M4+ + 2e- = M2+ is +0.98V. Is M2+ a good or poor reducing agent?
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Reagents that undergo a loss or a gain of electrons are called reducing agents or oxidising agents, ...
Reagents that undergo a loss or a gain of electrons are called reducing agents or oxidising agents, respectively.
Salt bridge is a U-type tube containing a concentrated salt solution (potassium chloride or sulfate) in a gel. The two solutions *(cathodic and anodic) are in contact by means of a salt bridge which allows the equilibration of the anions (ion flow).