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aman kumar Grade: Upto college level
        

in which of the following pair of complexes choose the one that absorbs light at a longer wavelength


a)[co(NH3)6]2+ ,[CO(H20)6]2+

7 years ago

Answers : (1)

ABHISHEK JAIN AskiitiansExpert-IITD
20 Points
										

Dear Aman,


 


  Energy of splitting (Δ) = hc/λ


      so if Δ↓ then λ↑


 


Δ has less value in case of weak lingand as compared to strong ligand.


here in compound (a) NH3 is a strong ligand so there will be higher value of Δ and thus lower value of λ.


 


therefore option (b) which contains weak  ligand H2O will absorb light at a longer wavelength


With Regards,


Abhishek Jain

7 years ago
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