Consider the following statements regarding electronic spectra of high spin complexes
\[ \begin{array}{l} \text{(A) } \mathrm{Ti^{3+}} \text{ complexes exhibit one sharp band.} \\ \text{(B) } \mathrm{Co^{2+}} \text{ and } \mathrm{Cr^{3+}} \text{ complexes exhibit two broad bands.} \\ \text{(C) } \mathrm{Mn^{2+}} \text{ complexes exhibit a series of very weak and sharp bands.} \\ \text{(D) } \mathrm{Ni^{2+}} \text{ complexes exhibit three broad bands.} \end{array} \]
The correct statements are
(a)A and C
(b)A, C and D
(c)C and D
(d)B, C and D
Answer
Answer: D ✓ checked by 4AB · confidence medium
The source book printed C; on checking, D is correct — see the explanation.
Explanation
Ti³⁺ shows one broad, often split band, not a sharp one. Co²⁺ and Cr³⁺ show two main broad visible bands. Mn²⁺ gives very weak sharp spin-forbidden bands, and Ni²⁺ three broad bands. B, C and D (d).