Consider the following standard electrode potentials ( $\mathrm{E}^0$ in volts) in aqueous solution Based on…

Consider the following standard electrode potentials ( $\mathrm{E}^0$ in volts) in aqueous solution
Based on this data, which of the following statements is correct?
  1. $\mathrm{Tl}^{3+}$ is more stable than $\mathrm{Al}^{3+}$
  2. $\mathrm{Tl}^{+}$is more stable than $\mathrm{Al}^{3+}$
  3. $\mathrm{Al}^{+}$is more stable than $\mathrm{Al}^{3+}$
  4. $\mathrm{Tl}^{+}$is more stable than $\mathrm{Al}^{+}$

Solution

According to the given standard potential data $\mathrm{E}_{\mathrm{T} \ell^{+} / \mathrm{T} \ell}^{\mathrm{o}} \lt \mathrm{E}_{\mathrm{A} \ell^{+} / \mathrm{A} \ell}^{\mathrm{o}}$
It mean that $\mathrm{T} \ell^{+}$is more stable as compare to $\mathrm{A} \ell^{+} . \mathrm{T} \ell^{+}$ is act as reducing agent whereas $\mathrm{Al}^{+}$ act as powerful oxidixing agent which makes is unstable.

Asked in: AP EAMCET 2024 (21 May Shift 2)

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