Question

For the complex $[NiC{l}_4{]}^{2-}$, write
(i) the IUPAC name (ii) the hybridization type (iii) the shape of the complex.
(Atomic no. of $Ni=28$)

Answer 1

1. Nickel(II) chloride
2. Here nickel is in +2 oxidation state and the ion has the electronic configuration $3d^8$. Each $C{l}^{-}$ ion donates a pair of electrons. The compound is paramagnetic, since, it contains two unpaired electrons.
3. In tetrahedral complexes, one s and three p orbitals are hybridised to form four equivalent orbitals oriented tetrahedrally.