Question

In $N{a}_2\left[Fe\right(CN{)}_{5}NO]$, sodium nitroprusside_________.

• A. oxidation state of Fe is +2
• B. this has $N{O}^{+}$ as ligand
• C. both are correct
• D. none is correct

Answer 1

Answer: (C)

both are correct

$N{a}_2\left[Fe\right(CN{)}_{5}NO]$ contains nitrosylium ligand which is positively charged and represented as $N{O}^{+}$.
Let X be the oxidation number of iron in $N{a}_2\left[Fe\right(CN{)}_{5}NO]$
$2(+1)+X+5(-1)+1=0$ or $X=+2$.
Thus the oxidation number of iron in $N{a}_2\left[Fe\right(CN{)}_{5}NO]$ is +2.