The complex that absorbs light of shortest wavelength is · ABC26IN0996
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Chemistry – General · Exam: CSIR NET DEC 2011 · Marks: 2 · Difficulty: Easy
The complex that absorbs light of shortest wavelength is
(a)$\left[\mathrm{CoF}_{6}\right]^{3-}$
(b)$\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$
(c)$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
(d)$\left[\mathrm{Co}(\mathrm{ox})_{3}\right]^{3-}\left(\mathrm{ox}=\mathrm{C}_{2}\mathrm{O}_{4}^{2-}\right)$
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
[Co(NH₃)₆]³⁺ has the largest Δo and absorbs at the shortest wavelength (c).
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