NEET2011ChemistryCoordination CompoundsActual
The wavelength of light absorbed is highest in
Options
- A[ Co ( NH ₃ )₅ Cl ²⁺ .
- B[ Co ( NH ₃ )₅ H ₂ O ]³⁺
- C[ Co ( NH ₃ )₆ ]³⁺
- D[ Co ( en )₃ ]³⁺
Correct answer
A. [ Co ( NH ₃ )₅ Cl ²⁺ .
Step-by-step solution
As in complex [ Co ( NH ₃ )₅ Cl ]²⁺ unpaired electrons are present, so it requires less energy for excitation. Thus, the wavelength of light absorbed will be highest (i.e., E 1 / ).