The correct order of wavelength (_ max ) of the halide to metal charge-transfer band of [Co (NH3 ) Cl ]2+ (I), [Co (NH3 )5 Br ]2+ (II) and [Co (NH3 )5 I ]2+ (III), is

ABC26IN0651 · Coordination Chemistry

Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Coordination Compounds – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Hard

The correct order of wavelength $\left(\lambda_{\text {max }}\right)$ of the halide to metal charge-transfer band of $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right) \mathrm{Cl}\right]^{2+}$ (I), $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Br}\right]^{2+}$ (II) and $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{I}\right]^{2+}$ (III), is

(a)III $<$ II $<$ I

(b)I $<$ II $<$ III

(c)II $<$ III $<$ I

(d)I $<$ III $<$ II

Answer

Answer (as printed): B

Explanation

No explanation was printed for this question.

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