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Coordination Compounds question

2025 · Shift 1 · Q2
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  5. /2025 · Shift 1 · Q2

Coordination Compounds question

2025 · Shift 1 · Q2

JEE AdvancedChemistryCoordination CompoundsMCQ+3 / −1
The correct order of the wavelength maxima of the absorption band in the ultraviolet-visible region for the given complexes is
  1. A
    [Co(CN)6]3−[Co(CN)_6]^{3-}[Co(CN)6​]3− < [Co(NH3)6]3+[Co(NH_3)_6]^{3+}[Co(NH3​)6​]3+ < [Co(NH3)5(H2O)]3+[Co(NH_3)_5(H_2O)]^{3+}[Co(NH3​)5​(H2​O)]3+ < [Co(NH3)5(Cl)]2+[Co(NH_3)_5(Cl)]^{2+}[Co(NH3​)5​(Cl)]2+
  2. B
    [Co(NH3)5(Cl)]2+[Co(NH_3)_5(Cl)]^{2+}[Co(NH3​)5​(Cl)]2+ < [Co(NH3)5(H2O)]3+[Co(NH_3)_5(H_2O)]^{3+}[Co(NH3​)5​(H2​O)]3+ < [Co(NH3)6]3+[Co(NH_3)_6]^{3+}[Co(NH3​)6​]3+ < [Co(CN)6]3−[Co(CN)_6]^{3-}[Co(CN)6​]3−
  3. C
    [Co(CN)6]3−[Co(CN)_6]^{3-}[Co(CN)6​]3− < [Co(NH3)5(Cl)]2+[Co(NH_3)_5(Cl)]^{2+}[Co(NH3​)5​(Cl)]2+ < [Co(NH3)5(H2O)]3+[Co(NH_3)_5(H_2O)]^{3+}[Co(NH3​)5​(H2​O)]3+ < [Co(NH3)6]3+[Co(NH_3)_6]^{3+}[Co(NH3​)6​]3+
  4. D
    [Co(NH3)6]3+[Co(NH_3)_6]^{3+}[Co(NH3​)6​]3+ < [Co(CN)6]3−[Co(CN)_6]^{3-}[Co(CN)6​]3− < [Co(NH3)5(Cl)]2+[Co(NH_3)_5(Cl)]^{2+}[Co(NH3​)5​(Cl)]2+ < [Co(NH3)5(H2O)]3+[Co(NH_3)_5(H_2O)]^{3+}[Co(NH3​)5​(H2​O)]3+
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