According to IUPAC nomenclature sodium nitroprusside is named as:
According to IUPAC nomenclature sodium nitroprusside is named as:
sodium nitroferricyanide
sodium nitroferrocyanide
sodium pentacyanonitrosyl ferrate (II)
sodium pentacyanonitrosyl ferrate (III)
Solution
Sodium nitroprusside
$\mathrm{Na}_2\left[\mathrm{Fe}\left(\mathrm{CN}_5\right) \mathrm{NO}\right]$
Let oxidation state of $\mathrm{Fe}$ is $x$ in this compound.
$\begin{aligned}
& +2+x+(-1) 5+1=0 \\
& \text { or }+2+x-5+1=0 \text { or } x=+2
\end{aligned}$
Thus IUPAC name of sodium nitroprusside is sodium pentacyanonitrosyl ferrate (II)