SATHEE: Coordination Compounds - Result Question 22

Coordination Compounds - Result Question 22

####24. Which of the following will exhibit maximum ionic conductivity?

[2001]

(a) $K_{4} [F e (C N)_{6}]$

(b) $[C o (N H_{3})_{6}] C l_{3}$

(c) $[C u (N H_{3})_{4}] C l_{2}$

(d) $[N i (C O)_{4}]$

Show Answer

Solution:

(a) The complex ion which give maximum ions in solution exhibit maximum ionic conductivity.

$K_{4} [F e (C N)_{6}] \to [F e (C N)_{6}]^{- 4} + 4 K^{+} \to 5 ions$

$[C o (N H_{3})_{6}] C l_{3} \to [C o (N H_{3})_{6}]^{3 +} + 3 C l^{-} \to 4$ ions

$[C u (N H_{3})_{4}] C l_{2} \to [C u (N H_{3})_{4}]^{2 +} + 2 C l^{-} \to 3$ ions

$[N i (C O)_{4}] \to$ No ions

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