Deduce the magnetic behaviour of each of the following:
(i) [Cr(NH3 )5Cl]2+
(ii) Fe(CO)5 [At. No. Cr = 24, Fe = 26]
Using valence bond theory predict the geometry and magnetic behaviour of [Cr(NH3)6]3+ ion [Cr = 24].
Cr(NH3)6]3+
The outer electronic configuration of Cr is 4s1 3d5.
Its oxidation state is +3. therefor now the electronic configuration of Cr3+ is 4s°3d3.
since it have three number of unpaired electron therefore it is paramagnetic in nature. It has d2sp3 hybridization, octahedral shape
Using valence bond theory, predict the shape and magnetic character of [Ni(CO)4] [Ni = 28].
What type of isomerism is exhibited by the following pair:
[Co(NH3)5Br]SO4 and [Co(NH3)SO4] Br
Give a chemical test to distinguish them.
Under the valence bond approach explain the shape and magnetic behaviour of [Ni(NH3)6]2+.[Given At. No. of Ni = 28]
Explain the following:
Cobalt metal complex is pink when it is octahedral [Co(H2O)6]2+ and it is blue when tetrahedral [CoCl4]2–