Which group 15 element exhibits the maximum oxidation state of +5 in its compounds?
All group 15 elements can exhibit a +5 oxidation state, but N achieves it most prominently (e.g., in HNO₃) due to its small size and high electronegativity, unlike P, As, or Sb.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Nomenclature of Elements with Atomic Number >100