JEE Mains · Chemistry · STD 12 - 2. Electrochemistry
The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidising capacity.
- A \(\mathrm{E}_{\mathrm{Pb}^{4+} / \mathrm{Pb}^{2+}}^{\ominus}=+1.67 \mathrm{~V}\)
- B \(\mathrm{E}_{\mathrm{Sn}^{4+} / \mathrm{Sn}^{2+}}^{\ominus}=+1.15 \mathrm{~V}\)
- C \(\mathrm{E}_{\mathrm{Al}^{3+} / \mathrm{Al}}^{\ominus}=-1.66 \mathrm{~V}\)
- D \(\mathrm{E}_{\mathrm{Tl}^{3+}\mathrm{/Tl}}^{\ominus}=1.26 \mathrm{~V}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{E}_{\mathrm{Pb}^{4+} / \mathrm{Pb}^{2+}}^{\ominus}=+1.67 \mathrm{~V}\)
Step-by-step Solution
Detailed explanation
The element having strongest oxidising capacity will have highest value of standard reduction potential.
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