Question

The $\left[Fe\right(CN{)}_6{]}^{3-}$ ion has magnetic moment of $1.73BM$ (Bohr Magnetic) while $\left[Fe\right(H_{2}O{)}_6{]}^{3+}$ has a magnetic moment of $5.92BM$. If true enter 1,else enter 0.

Answer 1

$\left[Fe\right(CN{)}_6{]}^{3-}$ has $d^{3}s{p}^3$ (inner $d$- complex) hybridization with one electron unpaired while $\left[Fe\right(H_{2}O{)}_6{]}^{3+}$ has $s{p}^3{d}^3$ (outer $d$-complec) hybridization with five unpaired electrons.<br><br>Magnectic moment$=\sqrt{N(N+2)}BM$<br><br>Where, $N$ is the number of unpaired electrons.