Medium MCQ +4 / -1 PYQ · JEE Mains 2021

In which one of the following sets all species show disproportionation reaction?

  1. A ClO$_2^ -$, F<sub>2</sub>, MnO$_4^ -$ and Cr<sub>2</sub>O$_7^{2 - }$
  2. B Cr<sub>2</sub>O$_7^{2 - }$, MnO$_4^{ - }$, ClO$_2^{- }$ and Cl<sub>2</sub>
  3. C MnO$_4^{ - }$, ClO$_2^{- }$, Cl<sub>2</sub> and Mn<sup>3+</sup>
  4. D ClO$_4^{ - }$, MnO$_4^{ - }$, ClO$_2^{ - }$ and F<sub>2</sub>

Solution

No option contains all species that show disproportionation reaction. So question is bonus.<br><br>MnO$_4^{ - }$, ClO$_4^{ - }$, Cr<sub>2</sub>O$_7^{2 - }$ - Cl, Mn, Cr in these anions are present in highest oxidation state. These will not undergo disproportionation.

About this question

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

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