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The following facts are availabel : 2A...

The following facts are availabel `:`
`2A^(c-)+B_(2) rarr 2B^(-)+A_(2),`
`2C^(c-)+B_(2) rarr No reaction, `
`2D^(c-)+A_(2) rarr 2A^(c-)+D_(2)`
Which of the following statement is correct ?

A

`E^(c-)._(C^(c-)|C_(2))gtE^(c-)._(B^(c-)|B_(2))gtE^(c-)._(A^(c-)|A_(2))gtE^(c-)._(D^(c-)|D_(2))`

B

`E^(c-)._(C^(c-)|C_(2))ltE^(c-)._(B^(c-)|B_(2))ltE^(c-)._(A^(c-)|A_(2))ltE^(c-)._(D^(c-)|D_(2))`

C

`E^(c-)._(C^(c-)|C_(2))ltE^(c-)._(B^(c-)|B_(2))gtE^(c-)._(A^(c-)|A_(2))gtE^(c-)._(D^(c-)|D_(2))`

D

`E^(c-)._(C^(c-)|C_(2))gtE^(c-)._(B^(c-)|B_(2))ltE^(c-)._(A^(c-)|A_(2))ltE^(c-)._(D^(c-)|D_(2))`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze the given reactions and determine the standard oxidation potentials (E°) for the species involved. Let's break it down step by step. ### Step 1: Analyze the First Reaction The first reaction is: \[ 2A^{c-} + B_2 \rightarrow 2B^{-} + A_2 \] In this reaction: - \( B_2 \) is being reduced to \( B^{-} \). - \( A^{c-} \) is being oxidized to \( A_2 \). Since \( B_2 \) is reduced, it indicates that \( B_2 \) has a higher standard reduction potential compared to \( A^{c-} \). Therefore, we can conclude: \[ E^{\circ} (A^{c-} \rightarrow A_2) < E^{\circ} (B^{-} \rightarrow B_2) \] ### Step 2: Analyze the Second Reaction The second reaction is: \[ 2C^{c-} + B_2 \rightarrow \text{No reaction} \] Since there is no reaction, it implies that \( B_2 \) cannot oxidize \( C^{c-} \). This means: \[ E^{\circ} (B^{-} \rightarrow B_2) < E^{\circ} (C^{c-} \rightarrow C_2) \] ### Step 3: Analyze the Third Reaction The third reaction is: \[ 2D^{c-} + A_2 \rightarrow D_2 + 2A^{c-} \] In this case: - \( A_2 \) is being reduced to \( A^{c-} \). - \( D^{c-} \) is being oxidized to \( D_2 \). This indicates that \( D^{c-} \) has a higher standard oxidation potential than \( A^{c-} \): \[ E^{\circ} (D^{c-} \rightarrow D_2) > E^{\circ} (A^{c-} \rightarrow A_2) \] ### Step 4: Establish the Order of Standard Oxidation Potentials From the analysis, we can summarize the relationships: 1. From the first reaction: \[ E^{\circ} (A^{c-}) < E^{\circ} (B^{-}) \] 2. From the second reaction: \[ E^{\circ} (B^{-}) < E^{\circ} (C^{c-}) \] 3. From the third reaction: \[ E^{\circ} (D^{c-}) > E^{\circ} (A^{c-}) \] Combining these relationships, we can establish the overall order of standard oxidation potentials: \[ E^{\circ} (D^{c-}) > E^{\circ} (A^{c-}) > E^{\circ} (B^{-}) > E^{\circ} (C^{c-}) \] ### Conclusion Based on the analysis, the correct statement regarding the standard oxidation potentials is: - \( E^{\circ} (D^{c-}) > E^{\circ} (A^{c-}) > E^{\circ} (B^{-}) > E^{\circ} (C^{c-}) \) ### Final Answer The correct option is **Option B**.

To solve the problem, we need to analyze the given reactions and determine the standard oxidation potentials (E°) for the species involved. Let's break it down step by step. ### Step 1: Analyze the First Reaction The first reaction is: \[ 2A^{c-} + B_2 \rightarrow 2B^{-} + A_2 \] In this reaction: - \( B_2 \) is being reduced to \( B^{-} \). ...
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