NEET | 2017Chemical BondingEasy
Question
Correct increasing order for the wavelengths of absorption in the visible region the complexes of Co3+ is :-
Options
A.
[Co(H2O)6]3+, [Co(en)3]3+, [Co(NH3)6]3+
B.
Co(H2O)6]3+, [Co(NH3)6]3+, [Co(en)3]3+
C.
[Co(NH3)6]3+, [Co(en)3]3+, [Co(H2O)6]3+
D.
[Co(en)3]3+, [Co(NH3)6]3+, [Co(H2O)6]3+
Solution
where absorbed energy (splitting energy)
absorbed wavelength
Presence of SFL
H2O < NH3 < en ligand strength splitting energy so absorbed
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