Chapter 4: The d-and f-Block Elements - Assertion-Reason Quiz

Assertion (A): Manganese (Z=25) exhibits all oxidation states from +2 to +7. Reason (R): Manganese has the configuration 3d⁵4s² and can use all seven outer electrons for bonding; its position near the middle of the series provides both the electrons and available orbitals for all these states.

Review the options below and lock in the strongest answer.