The effective atomic number of Iron (Z = 26) in [Fe(CN)6]-3 is

Question

The effective atomic number of Iron (Z = 26) in [Fe(CN)6]-3 is (A) 36 (B) 33 (C) 35 (D) 34

Tardigrade Admin · Accepted Answer

Key Idea The total number of electrons which the central metal ion appears to possess in the complex including those gained by it in bonding is called effective atomic number of central metal ion.

In the given complex ion

[F e (CN)

_{6}]^{3 -}

, the

F e

is in

+ 3

oxidation state. As we know that atomic number of iron is

26

. The number of electron in

F e^{3 +}

is

23.

Each of the six cyanide molecules donates a pair of electrons so that EAN becomes

23 + 2 \times 6 \Rightarrow 35

Q. The effective atomic number of Iron $(Z = 26)$ in $[F e (CN)_{6}]^{- 3}$ is

$36$

$33$

$35$

$34$

Q. The effective atomic number of Iron (Z=26) in [Fe(CN)6​]−3 is

36

33

35

34

Q. The effective atomic number of Iron $(Z = 26)$ in $[F e (CN)_{6}]^{- 3}$ is

$36$

$33$

$35$

$34$