The symbol is used to show the standard reduction potential of an oxidation reaction in a half-cell is
.
Option: A
Step-by-step explanation:
A chemical species 'standard reduction potential can be characterized as the species' propensity to decrease. It is expressed in volts, under normal temperature and pressure limits. Here both the oxidation and reduction reaction is represented by the same symbol.
Based on the propensity of the chemical species to be the, the value of the typical reduction potential may be positive or negative. Of any defined species, the more favorable the standard reduction potential value is, the more probable it will be to be that. When their is greater the scope for standard reductions, the more probable the half-reaction would occur as a reduction.