Using the `E^(@)` values of A and B predict which is better for coating the surface of iron ` [E_ ((Fe^(2+)//Fe))^(@) =-0.44V]` to prevent corrosion and why ?
`E_((A^(2+)//A))^(@)=-2.37V`, `E_((B^(2+)//B))^(@)= 0.14V`

Explanation

To determine which metal, A or B, is better for coating iron to prevent corrosion, we need to analyze their standard reduction potentials and how they compare to that of iron.

### Step 1: Understand the standard reduction potentials
The standard reduction potentials (E°) for the relevant half-reactions are given as follows:
- For iron: \( E°(Fe^{2+}/Fe) = -0.44 \, V \)
- For metal A: \( E°(A^{2+}/A) = -2.37 \, V \)
- For metal B: \( E°(B^{2+}/B) = +0.14 \, V \)

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