MCQ
The name of complex ion, $[Fe(CN)_6]^{3-}$ is
- ATricyanoferrate $(III)$ ion
- BHexacyanidoferrate $(III)$ ion
- CHexacyanoiron $(III)$ ion
- ✓Hexacyanitoferrate $(III)$ ion
✓
Answer
Correct option: D.
Hexacyanitoferrate $(III)$ ion
d
The correct formula of diammine dichlorodicyano chromate $(III)$ is $\left[ CrCl _2( CN )_2\left( NH _3\right)_2\right]^{-}$. It contains two ammines, two cyano, and two chloro ligands. The oxidation state of chromium is $III$.Hence, the overall charge on the anion is $-1$.
The correct formula of diammine dichlorodicyano chromate $(III)$ is $\left[ CrCl _2( CN )_2\left( NH _3\right)_2\right]^{-}$. It contains two ammines, two cyano, and two chloro ligands. The oxidation state of chromium is $III$.Hence, the overall charge on the anion is $-1$.
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