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The standard oxidation potentials of the...

The standard oxidation potentials of the electrodes `Ag//Ag^(+), Sn//Sn^(2+), Ca//Ca^(2+), Pb//Pb^(2+)` 0.8, 1.36, 2.86 and 10.12V respectively. The most powerful oxidizing agent among these metals is

A

Pb

B

Ca

C

Sn

D

Ag

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To determine the most powerful oxidizing agent among the given metals based on their standard oxidation potentials, we can follow these steps: ### Step 1: Understand the Concept of Oxidation Potential The standard oxidation potential (E°) indicates how easily a species can be oxidized. A higher positive value of E° means that the species is more likely to lose electrons and thus act as a stronger oxidizing agent. ### Step 2: List the Given Standard Oxidation Potentials We have the following standard oxidation potentials for the electrodes: - Ag/Ag⁺: 0.8 V - Sn/Sn²⁺: 1.36 V - Ca/Ca²⁺: 2.86 V - Pb/Pb²⁺: 10.12 V ### Step 3: Compare the Oxidation Potentials Now, we will compare the values: - Ag: 0.8 V - Sn: 1.36 V - Ca: 2.86 V - Pb: 10.12 V ### Step 4: Identify the Highest Oxidation Potential Among these values, Pb has the highest oxidation potential of 10.12 V. This indicates that Pb is the most easily oxidized among the four metals. ### Step 5: Determine the Most Powerful Oxidizing Agent Since the most powerful oxidizing agent is the one that can oxidize other substances most readily, we conclude that the metal with the highest oxidation potential (Pb) is the most powerful oxidizing agent. ### Final Answer Thus, the most powerful oxidizing agent among the given metals is **Pb**. ---
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