Easy MCQ +4 / -1 PYQ · JEE Mains 2021

Identify the process in which change in the oxidation state is five :

  1. A $C{r_2}O_7^{2 - } \to 2C{r^{3 + }}$
  2. B $MnO_4^ - \to M{n^{2 + }}$ Correct answer
  3. C $CrO_4^{2 - } \to C{r^{3 + }}$
  4. D ${C_2}O_4^{2 - } \to 2C{O_2}$

Solution

$MnO_4^ - + 5e \to M{n^{ + 2}}$

About this question

Subject: Chemistry · Chapter: Redox Reactions · Topic: Oxidation States

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