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NEETChemistryd and f Block Elements

Which is a stronger reducing agent between Cr 2+ and Fe 2+ and why?

Options

  1. ACr 2+ is a stronger reducing agent because it has a higher atomic number.
  2. BFe 2+ is a stronger reducing agent because it has a smaller ionic radius.
  3. CCr 2+ is a stronger reducing agent because it has a more positive standard reduction potential (E ⊖ ) value.
  4. Dbecause d 4 to d 3 transition occurs in case of Cr 2+ to Cr 3+ But d 6 to d 5 transition occurs in case of Fe

Correct answer

D. because d 4 to d 3 transition occurs in case of Cr 2+ to Cr 3+ But d 6 to d 5 transition occurs in case of Fe

Step-by-step solution

Correct Option is : (D) because d 4 to d 3 transition occurs in case of Cr 2+ to Cr 3+ But d 6 to d 5 transition occurs in case of Fe 2+ to Fe 3+

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