A) II > I > III
B) I > III > II
C) III > I > II
D) II > I > III
Correct Answer: C
Solution :
Different complexes exhibit different colours when either the metal ion is different or the metal ion is same but ligands attached to it are different. The CFSE of the ligands. is in the order \[{{H}_{2}}O<N{{H}_{3}}<C{{N}^{-}}\](from spectrochemical series). The wavelengths absorbed will be in the opposite order \[\left( \because \,E=\frac{hc}{\lambda } \right)\] i.e., lll > I > II The complementary colour will be transmitted or reflected.You need to login to perform this action.
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