Consider the complex : K3[Co(C2O4)2Cl2]
The coordination number, the oxidation number of Co and the number of unpaired electrons on the metal are respectively
6, +3, 4
is bidentate and Cl– is monodentate ligand.
Hence, C.N. = 2 × 2 + 2 × 1 = 6
Both and Cl– are weak field ligands and hence form outer (high spin) complex.
Co(III) : 3d6 (n = 4)
On treatment of [Ni(NH3)4]2+ with concentrated HCl, two compounds I and II having the same formula, Ni(NH3)2Cl2 are obtained. I can be converted into II by boiling with dilute HCl. A solution of I reacts with oxalic acid to form [Ni(NH3)2(C2O4) whereas II does not react. Point out the correct statement of the following
The aqueous 0.01 m of [Co(NH3/6]2 [Co(NH3)(NO2)5]3 is expected to have the depression of freezing point (Kf for water = 1.86 K/m)
Ethylenediaminetetraacetic acid (EDTA) is the antidote for lead poisoning. It is administered in the form of
Which of the following ions are expected to be paramagnetic to the same extent?
I. [FeF6]3– II. [MnCl4]2–
Which of the following is an outer orbital complex?
The most stable ions is
Which of the following has the largest number of isomers?
The number of geometric isomer of the complex Cr(NH3)3Cl3 is
A coordination complex having which one of the following descriptions would be paramagnetic to the maximum extent?
Pick out the paramagnetic species of the following