NCERT Exercise 4.7 - The d- and f-Block Elements
Question: Cr 2+ is stronger reducing agent than Fe 2+ Reason: d 4 d 3 occurs in case of Cr 2+ to Cr 3+ But d 6 d 5 occurs in case of Fe 2+ to Fe 3+ In a medium (like water) d 3 is more stable as compared to d 5 (see CFSE)
Answer: Work from the relevant NCERT mechanism, definition, or quantitative relation for this exercise.
Full step-by-step NCERT solution with diagrams on Something by Zero.