First slide

Comparision of double salt and complex

Question

Number of ions present in $K_{4} [Fe {(CN)}_{6}]$

Very Easy

A

2
B

10
C

3
D

5

Solution

$K_{4} [Fe {(CN)}_{6}]$ is a complex salt. On ionisation it will dissociate in 4K⁺ and $[Fe {(CN)}_{6}^{4 -}]$ ion. Hence, in $K_{4} [Fe {(CN)}_{6}]$ five ions are present.

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