The pair of compounds in which both members show LMCT band in their electronic spectra is · ABC26IN1138
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Electron Transfer Redox · Exam: CSIR NET JUNE 2019 · Marks: 2 · Difficulty: Easy
The pair of compounds in which both members show LMCT band in their electronic spectra is
(a)$\left[\mathrm{FeCl}_{4}\right]^{2-}$ and $\left[\mathrm{Fe}(\mathrm{bpy})_{3}\right]^{2+}$
(b)$\left[\mathrm{FeBr}_{4}\right]^{2-}$ and $\left[\mathrm{TcO}_{4}\right]^{-}$
(c)$\left[\mathrm{ReO}_{4}\right]^{-}$ and $[\mathrm{Ru}(\mathrm{bpy})]^{2+}$
(d)$\left[\mathrm{Fe}(\mathrm{phen})_{3}\right]^{2+}$ and $\left[\mathrm{FeCl}_{4}\right]^{2-}$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
[FeBr₄]²⁻ (Br⁻ → Fe) and [TcO₄]⁻ (d⁰, O → Tc) both show LMCT; [Fe(bpy)₃]²⁺ and [Ru(bpy)₃]²⁺ show MLCT.
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