Which of the following are paramagnetic?
A. \([\mathrm{NiCl_4}]^{2-}\) B. \(\mathrm{Ni(CO)_4}\) C. \([\mathrm{Ni(CN)_4}]^{2-}\) D. \([\mathrm{Ni(H_2O)_6}]^{2+}\) E. \(\mathrm{Ni(PPh_3)_4}\)
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Crystal field theory, colour and magnetic properties
Every question from past board papers on Crystal field theory, colour and magnetic properties, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
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The correct order of the wavelength of light absorbed by the following complexes is,
A. \([\mathrm{Co(NH_3)_6}]^{3+}\) B. \([\mathrm{Co(CN)_6}]^{3-}\) C. \([\mathrm{Cu(H_2O)_4}]^{2+}\) D. \([\mathrm{Ti(H_2O)_6}]^{3+}\)
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NEET UG 2022 question paper (official, booklet R6)
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The order of energy absorbed which is responsible for the color of complexes
(A) \([Ni(H_2O)_2(en)_2]^{2+}\)
(B) \([Ni(H_2O)_4(en)]^{2+}\) and
(C) \([Ni(en)_3]^{2+}\)
is
NEET UG 2021 question paper (official, booklet M4)
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Match List - I with List - II.
List - I : (a) \([Fe(CN)_6]^{3-}\) (b) \([Fe(H_2O)_6]^{3+}\) (c) \([Fe(CN)_6]^{4-}\) (d) \([Fe(H_2O)_6]^{2+}\)
List - II : (i) 5.92 BM (ii) 0 BM (iii) 4.90 BM (iv) 1.73 BM
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NEET UG 2020 question paper (official, booklet E1)
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Which of the following is the correct order of increasing field strength of ligands to form coordination compounds ?
NEET UG 2019 question paper (official, booklet P1)
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What is the correct electronic configuration of the central atom in K\(_4\)[Fe(CN)\(_6\)] based on crystal field theory ?
NEET UG 2018 question paper (official, booklet EE)
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Which one of the following ions exhibits d-d transition and paramagnetism as well ?
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Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :
Column I: a. Co\(^{3+}\); b. Cr\(^{3+}\); c. Fe\(^{3+}\); d. Ni\(^{2+}\)
Column II: i. \(\sqrt{8}\) B.M.; ii. \(\sqrt{35}\) B.M.; iii. \(\sqrt{3}\) B.M.; iv. \(\sqrt{24}\) B.M.; v. \(\sqrt{15}\) B.M.
NEET UG 2017 question paper (official, booklet B)
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Correct increasing order for the wavelengths of absorption in the visible region for the complexes of \(Co^{3+}\) is :
NEET UG 2016 Phase 2 question paper (official, booklet ZZ)
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Jahn-Teller effect is not observed in high spin complexes of