Question

Dilute equimolar solutions of each of the following compounds are prepared. Identify the compound which does not ionize.

• A. $N{a}_3\left[Co\right(N{O}_2{)}_6]$
• B. $\left[Co\right(Py{)}_3\left(CN{)}_3\right]$
• C. $\left[Pt\right(N{H}_3{)}_6]B{r}_4$
• D. $K\left[Co\right(EDTA\left)\right]$

Answer 1

The correct option is B $\left[Co\right(Py{)}_3\left(CN{)}_3\right]$

$\left[Co\right(Py{)}_3\left(CN{)}_3\right]$ won't ionize becuase there is no atom outside the coordination sphere. For ionization you need atoms or ion out of the coordination sphere.