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NEETChemistryd and f Block Elements

What is the reason that among the d 4 species, Cr 2+ is strongly reducing while manganese(III) is strongly oxidizing?

Options

  1. ACr 2+ has a higher atomic number than Mn 3+
  2. BMn 3+ has a higher ionization energy than Cr 2+
  3. CMn 3+ has a completely filled d-orbital
  4. DCr 2+ is strongly reducing because it changes to t 2g 3 configuration whereas Mn 3+ is strongly oxidizing beca

Correct answer

D. Cr 2+ is strongly reducing because it changes to t 2g 3 configuration whereas Mn 3+ is strongly oxidizing beca

Step-by-step solution

Correct Option is : (D) Cr 2+ is strongly reducing because it changes to t 2g 3 configuration whereas Mn 3+ is strongly oxidizing because it changes to stable half-filled configuration

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