Choose the correct statements about Tanabe-Sugano diagrams
(a)$\mathrm{E} / \mathrm{B}$ is plotted against $\Delta_{0} / \mathrm{B}$.
(b)The zero energy is taken as that of the lowest term
(c)Terms of the same symmetry cross each other
(d)Two terms of the same symmetry upon increases of ligand field strength bend apart from each Other.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
Answer: (A), (B) and (D) — A Tanabe–Sugano diagram plots E/B against Δo/B, with the ground term as the zero of energy. Terms of the same symmetry do not cross; they repel and bend apart, so C is false and D is true.