Which of the following complex ions absorbs the light of minimum wavelength?

Options

A. `[Co(H_2O)_6]^(3+)`
B. `[CoF_6]^(3-)`
C. `[Co(CN)_6]^(3-)`
D. `[Co(NH_3)_6)]^(3+)`

Answer

C

Explanation

Wavelength of light absorb` prop 1/("stability of complex")`