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Electrochemistry question

2023 · Q93
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Electrochemistry question

2023 · Q93

NEETChemistryElectrochemistryMCQ+4 / −1

The EΘ\mathrm{E}^{\Theta}EΘ values for

Al+/Al=+0.55 V and Tl+/Tl=−0.34 VAl3+/Al=−1.66 V and T3+/Tl=+1.26 V\begin{aligned} & \mathrm{Al}^{+} / \mathrm{Al}=+0.55 \mathrm{~V} \text { and } \mathrm{Tl}^{+} / \mathrm{Tl}=-0.34 \mathrm{~V} \\ & \mathrm{Al}^{3+} / \mathrm{Al}=-1.66 \mathrm{~V} \text { and } \mathrm{T}^{3+} / \mathrm{Tl}=+1.26 \mathrm{~V} \end{aligned}​Al+/Al=+0.55 V and Tl+/Tl=−0.34 VAl3+/Al=−1.66 V and T3+/Tl=+1.26 V​

Identify the incorrect statement

  1. A
    Al\mathrm{Al}Al is more electropositive than Tl\mathrm{Tl}Tl
  2. B
    Tl3+\mathrm{Tl}^{3+}Tl3+ is a good reducing agent than Tl1+\mathrm{Tl}^{1+}Tl1+
  3. C
    Al+\mathrm{Al}^{+}Al+ is unstable in solution
  4. D
    Tl\mathrm{Tl}Tl can be easily oxidised to Tl+\mathrm{Tl}^{+}Tl+ than Tl3+\mathrm{Tl}^{3+}Tl3+
View written solutionFree

Correct answer: B

$\mathrm{Tl}^3$ act as an oxidising agent not reducing agent.

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