JEE-Level Practice: d- and f-Block Elements
A focused JEE Main / Advanced practice quiz on The d- and f-Block Elements — electronic configurations and unpaired-electron counts, spin-only moments, oxidation-state and stability reasoning, permanganate/dichromate equivalent mass and titration stoichiometry, and lanthanoid-contraction consequences. Read the ion's d-configuration first. Each question has a worked explanation.