AIIMS2019Chemistry-Coordination Compounds

AIIMS 2019 Chemistry Spectrochemical Series MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Correct increasing order for the wavelength of absorption in the visible region for the complexes of Co³⁺ is: (1) [Co(CN)₆]³⁻, [Co(NH₃)₆]³⁺, [Co(NH₃)₅(H₂O)]³⁺[Co(NH₃)₅Cl]²⁺ (2) [Co(CN)₆]³⁻, [Co(NH₃)₅(H₂O)]³⁺[Co(NH₃)₅Cl]²⁺ [Co(NH₃)₆]³⁺, (3) [Co(NH₃)₅]²⁺, [Co(CN)₆]³⁻, [Co(NH₃)₅(H₂O)]³⁺[Co(NH₃)₅Cl]²⁺ (4) [Co(NH₃)₅Cl]²⁺, [Co(NH₃)₅(H₂O)]³⁺, [Co(NH₃)₄]³⁺, [Co(CN)₆]³⁻

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