Chemistry - Coordination Chemistry Question with Solution | TestHub

How many of the following statement(s) is/are correct?

(i) Hexacarbonylchromium(0) is ${\mathrm{d}}^2{\mathrm{sp}}^3$ hybridised and diamagnetic.

(ii) The number of unpaired electron in ${\mathrm{d}}^6$, low spin, octahedral complex is 2.

(iii) $\left[\mathrm{Ag}{\left({\mathrm{NH}}_3\right)}_2\right]\mathrm{Cl}$ does not show paramagnetism.

(iv) Lower charge density of metal ion increases the stability of metal ion complex.

(v) Ferrocene is an aromatic compound.

(vi) Oxidation state of iron in ferrocene is +3.

(vii) Metal carbonyl ${\left[\mathrm{Mn}(\mathrm{CO}{)}_6\right]}^{+}$has stronger $\mathrm{C}-\mathrm{O}$ bond than $\left[\mathrm{Cr}(\mathrm{CO}{)}_6\right]$.

(viii) Complex ${\left[\mathrm{Co}(\mathrm{CN}{)}_6\right]}^{3-}$ has larger value of ${\Delta }_{\mathrm{o}}$ than the complex ${\left[\mathrm{Co}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+}$.

(ix) Azide ion is an ambidentate ligand.