The values of Standard Reduction Potential for three metal ions A, B and C are 0.5, -3.0 and -1.2 respectively. Which corresponding metal among the three is the best reducing agent?
Answer:
Standard Reduction Potentials (SRPs) tell us about the potential that a metal ion has to get reduced while Standard Oxidation Potentials (SOPs) tell us about the potential that a metal has to get oxidised. SOP is same in magnitude but opposite in direction compared to SRP. From the given SRP values it is evident that metal ion B has the least SRP value. So, the metal B will be the one which will have the highest standard oxidation potential and hence act as the best reducing agent among the three metal ions.
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