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Which of the following will exhibit maximum ionic conductivity?

1. K4[Fe(CN)6]
2. [Co(NH3)6]Cl3
3. [Cu(NH3)4]Cl2
4. [Ni(CO)4]

Correct answer: [Cu(NH3)4]Cl2

Solution

Ionic conductivity depends on the number of ions produced in solution. [Cu(NH3)4]Cl2 dissociates into three ions (1 complex cation and 2 Cl⁻ anions), which is the maximum among the given options.

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