Question

Three complexes, 

[CoCl(NH₃)5] ²⁺(I), 

[Co(NH₃)₅H₂O]³⁺ (II) and 

[Co(NH₃)₆] ³⁺(III) 

absorb light in the visible region. The correct order of the wavelength of light absorbed by them is : 

(1) (III) > (I) > (II) 

(2) (III) > (II) > (I) 

(3) (I) > (II) > (III) 

(4) (II) > (I) > (III)

Answer 1

Correct option (3) (I) > (II) > (III)

Explanation:

As we know that