Question

Which of the following will exhibit maximum ionic conductivity?

• A. K4 [Fe(CN6]
• B. [Co(NH3)6] Cl3
• C. [Cu(NH3)4] Cl2
• D. [Ni (CO)4]

Answer 1

Answer: (A)

K4 $Fe(CN6$

Answer 2

Conductivity a number of ions in the solution.

K4[Fe(CN)6] $\stackrel { \text { aq. } } { \rightleftharpoons }$ 4K+ (aq) + [Fe(CN)6]4– (aq)

4 : 1 electrolyte.

It contains maximum number of ions i.e. 5.

(2) [Co(NH3)6] Cl3 $\stackrel { \text { aq. } } { \rightleftharpoons }$ [Co(NH3)6]3+ (aq) + 3Cl– (aq)

1 : 3 electrolyte.

[Cu(NH3)4] Cl2 $\stackrel { \text { aq. } } { \rightleftharpoons }$ [Cu(NH3)4]2+ (aq) + 2Cl– (aq)

1 : 2 electrolyte.

[Ni (CO)4] $\stackrel { \text { aq. } } { \rightleftharpoons }$ [Ni (CO)4] (aq) (neutral).