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7. Redox reactions — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry7. Redox reactions1 Mark
MCQ
Which of the following cannot function as an oxidising agent?
  • ✓
     $\mathrm{N}^{3-}$
  • B
     $\mathrm{SO}_4^{2-}$
  • C
     $\mathrm{BrO}_3^{-}$
  • D
    $\mathrm{MnO}_4^{-}$
✓

Answer

Correct option: A.
 $\mathrm{N}^{3-}$
a
In $\mathrm{N}^{3-}$ ion ' $\mathrm{N}$ ' is present in its lowest possible oxidation state, hence it cannot be reduced further because of which it cannot act as an oxidizing agent.

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