Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Electron Transfer Redox · Exam: NET DEC 2015 · Marks: 2 · Difficulty: Medium
Three electronic transitions at 14900, 22700 and $34400\ \mathrm{cm}^{-1}$ are observed in the absorption spectrum of $\left[\mathrm{CrF}_{6}\right]^{3-}$, The $\Delta_{0}$ value (in $\mathrm{cm}^{-1}$) and the corresponding transition are
(a)7800 and $^{4}A_{2g} \rightarrow {}^{4}T_{2g}$
(b)14900 and $^{4}A_{2g} \rightarrow {}^{4}T_{2g}$
(c)14900 and $^{4}T_{1g} \rightarrow {}^{4}T_{1g}(F)$
(d)7800 and $^{4}T_{2g} \rightarrow {}^{3}T_{1g}(F)$