Chemistry - Coordination Chemistry Question with Solution | TestHub

Consider following complex formation reactions :

(i) ${\mathrm{Co}}_{(\text{aq. })}^{3+}+{\mathrm{KCN}}_{(\text{excess })}\rightleftharpoons$ complex ion'P'

Complex 'P' have secondary valency of central metal = 6

(ii) ${\mathrm{Ni}}_{(\mathrm{aq}.)}^{2+}+{\mathrm{KCN}}_{(\text{excess })}\rightleftharpoons$ complex ion ' Q '

(iii) ${\mathrm{Cu}}_{\text{(aq.) }}^{2+}+{\mathrm{KCN}}_{\text{(excess) }}\rightleftharpoons$ complex ion' ${\mathrm{R}}^{\prime }$

and find the value of expression $|\mathrm{X}+\mathrm{Y}-\mathrm{Z}|$ for complex ions ' P ', ' Q ' and ' R ' as per CFT .

where

X = Total number of electrons present in t_2g orbitals of central metal of complex ion 'P'

Y = Total number of electrons present in $d_{x^2-y^2}$

orbital of central metal of complex ion 'Q'

Z = Total number of electrons present in $d_{x^2-y^2}$

orbital of central metal of complex ion 'R'