Question

Which of the following will exhibit maximum ionic conductivity?

• A. $K_4\left[Fe\right(CN{)}_6]$
• B. $\left[Co\right(N{H}_3{)}_6]C{l}_3$
• C. $\left[Cu\right(N{H}_3{)}_4]C{l}_2$
• D. $\left[Ni\right(CO{)}_4]$

Answer 1

The correct option is A $K_4\left[Fe\right(CN{)}_6]$

Ionic conductance increases with increasing the number of ions, produced after decomposition.
$$\begin{array}{ccc}\text{Compound}& & \text{Number of ions produced}\\ K_4\left[Fe\right(CN{)}_6]& & 5\\ \left[Co\right(N{H}_3{)}_6]C{l}_3& & 4\\ \left[Cu\right(N{H}_3{)}_4]C{l}_2& & 3\\ \left[Ni\right(CO{)}_4]& & 0\end{array}$$