For the disproportionation of T ℓ + to T ℓ and T ℓ 3 + in the presence of 1 M HCl : E ∘ ( T ℓ + / T ℓ ) = − 0.34 V , E ∘ ( T 3 + / T ℓ + ) = + 1.25 V . Which of the following is/are correct?

Question

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Question Explanation: Which of the following is/are correct for the disproportionation reaction.

Concept: This question is based on feasibility of disproportionation reaction.

Solution:⟹>

1. Disproportionation: $E_{ce ll}^{0} = E_{re d}^{0} - E_{o x}^{0} = E_{0} (\frac{T l ^{+}}{Tl}) - E_{0} (\frac{T l ^{3 +}}{T l ^{+}}) = - 0.34 - 1.25 = - 1.59 V .$ . Highly non-spontaneous. (1) is correct.

2. $3 E_{\circ} (T l^{3 +} / T l^{+}) = 2 (1.25) + 1 (- 0.34) = 2.50 - 0.34 = 2.16 ⟹ E_{\circ} = 0.72 V$ , (2) is correct.

3. $E_{\circ} (T l^{3 +} / T l^{+}) = 1.25 V > 1.23 V O f O_{2}$ (3) is correct.

4. Complexing the product of disproportionation (Tl³⁺) shifts the equilibrium to the right. (4) is correct.

Final Answer: Options (A, B, C & D) are correct.

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Options:(select one or more)

Doubts & Discussion