Question

The effective atomic number of iron in $[Fe(CN{)}_6{]}^{3-}$ is

• A. 34
• B. 36
• C. 37
• D. 35

Answer 1

Answer: (D)

O.S. of Fe in $[Fe(CN{)}_6{]}^{3-}$ is +3
$\therefore$ E.A.N. = (26 - 3) + 6 $\times$ 2
= 2 3 + 12 = 35