User:Kuldeep makwana ambition

Color in coordination compound is due to the partially filled d subshell that allow d-d transition.If coordination compound having paired electron although it show color then it is due to the charge transfer spectra. It is important to note that when a ray of white light is incident on the complex compound then it absorb a wavelength of particular color and excite from t2g to eg orbital where it become unstable and when it comes Back  it emit complementary color.