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AP EAMCET · Chemistry · Electrochemistry

The standard electrode potential (in V) values for \(\mathrm{Al}^{3+}\) / \(\mathrm{Al}, \mathrm{Tl}^{3+} / \mathrm{T} 1\) are respectively

  1. A \(-1.66,-1.26\)
  2. B \(+1.66,+1.26\)
  3. C \(-1.66,+1.26\)
  4. D \(+1.66,-1.26\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(-1.66,+1.26\)

Step-by-step Solution

Detailed explanation

(\(\mathrm{Al}^{3+}\) is much more stable than \(\mathrm{Al}\) and due to electropositive nature, the standard reduction potential of \(\mathrm{Al}^{3+} / \mathrm{Al}\) is negative. \(\mathrm{Tl}\) is not as electropositive as \(\mathrm{Al}\) and therefore \(\mathrm{Tl}^{3+}\)…