Question

Here is a list of metals and their potentials. Pick the ones which are stronger oxidizing agents than hydrogen electrode. You can pick more than one.

• A. Metal A - Reduction potential 3.4
• B. Metal B - Oxidation potential 2.3
• C. Metal C - Reduction potential -1.4
• D. Metal D - Oxidation potential -0.9

Answer 1

Answer: (A), (D)

Metal D - Oxidation potential -0.9

Metal A has a higher reduction potential (3.4) than standard hydrogen electrode reduction potential (0), thus metal A is a stronger oxidizing agent.
Oxidation potential = (-) reduction potential
Reduction potential of metal D is = 0.9 which also higher than hydrogen electrode, hence it is a stronger oxdizing agent.