(a) [ Fe ( H_2 O )_6]^2+ is paramagnetic whereas [ Fe ( CO )_5] is diamagnetic. Justify the statement. [Atomic number of Fe =26 ] 2+1 (b) On the…

$\displaystyle \left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ is paramagnetic whereas $\displaystyle \left[\mathrm{Fe}(\mathrm{CO})_{5}\right]$ is diamagnetic. Justify the statement. [Atomic number of $\displaystyle \mathrm{Fe}=26$ ] $\displaystyle 2+1$

On the basis of crystal field theory write the electronic configuration for $\displaystyle \mathrm{d}^{4}$ ion if $\displaystyle \Delta_{0}<\mathrm{P}$.