NCERT Example 4.5 - The d- and f-Block Elements
Question: Write balanced ionic equation for oxidation of Fe^{2+} by Cr2O7^{2−} in acid.
Answer: Cr2O7^{2−} + 14H^{+} + 6Fe^{2+} → 2Cr^{3+} + 7H2O + 6Fe^{3+}.
Full step-by-step NCERT solution with diagrams on Something by Zero.