Question

Red precipitate is obtined when ethanol solution of diamehylgyoxime is added to ammonical $Ni\left(II\right)$ Which of the following statement is not true?

• A. Red complex has a square planer grometery
• B. Complex has symmetrical $H-$bonding
• C. Red complex has a terahedral geometry
• D. Dimethylglyoxime function as bidenate ligand

Answer 1

The correct option is C Red complex has a terahedral geometry

The formed Red complex is $\left[Ni\right(dmg{)}_2]$ as can be seen in the image.The dmg is a bidentate ligand and a strong field ligand.Ni(2+) in its ground state have the electronic configuration of $3d^{8}4s^0$ and when the ligand comes closer the electrons gets paired up and the corresponding hybridization formed is $ds{p}^2$ i.e square planar complex. Hence option C is correct.