Question

The complex ${\left[Fe{\left(H_{2}O\right)}_{5}NO\right]}^{2+}$ is formed in Brown ring test for nitrates select correct statement for the complex?

• A. Hybridisation of iron is $s{p}^3{d}^2$
• B. Iron and nitrosyl has $+1$ oxidation state
• C. It has magnetic moment of $3.87B.M.$
• D. All are correct

Answer 1

Answer: (D)

In ${\left[Fe{\left(H_{2}O\right)}_{5}NO\right]}^{+2}$
$F{e}^{+}=3d^{6}4s^1$
in presence of ligand $F{e}^{+}=3d^{7}4s^0$
hybridisation $=s{p}^3{d}^2$
magnetic moment's $=3.87B.M$