Easy MCQ +4 / -1 PYQ · JEE Mains 2022

Among the following, which is the strongest oxidizing agent?

  1. A Mn<sup>3+</sup> Correct answer
  2. B Fe<sup>3+</sup>
  3. C Ti<sup>3+</sup>
  4. D Cr<sup>3+</sup>

Solution

Strongest oxidising agent have highest reduction potential value<br/><br/> $$\mathrm{E}_{\mathrm{Fe}^{3+} \mid \mathrm{Fe}^{2+}}^{\circ}= + 0.77 \mathrm{~V} \quad \mathrm{E}_{\mathrm{Ti}^{3+} \mid \mathrm{Ti}^{2+}}^{\circ}=-0.37 \mathrm{~V}$$<br/><br/> $$\mathrm{E}^{\circ}_{\mathrm{Mn}^{+3} \mid \mathrm{Mn}^{+2}}=+1.57 \mathrm{~V} \quad \mathrm{E}^{\circ}_{\mathrm{Cr}^{3+}\mid\mathrm{Cr}^{2+}} = -0.41 \mathrm{~V}$$<br/><br/> $\mathrm{Mn}^{+3}$ is the best oxidising agent among the given series.

About this question

Subject: Chemistry · Chapter: d and f Block Elements · Topic: Properties of Transition Metals

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