In the $Cu$-ammonia complex, the state of hybridization of $Cu^{2+}$ is:

Consider the reaction $K_2[Ni(CN)_4] + 4K + 4NH_3 \to A$ (complex $A$).
Complex $A$ gives five ions in aqueous solution. Choose the $CORRECT$ statements.

Which of the following complexes has a square planar geometry and $dsp^2$ hybridization?

Explain Valence Bond Theory.

What type of hybridization is found in $[Ni(Cl)_4]^{2-}$?

The $d$-electronic configuration of an octahedral $Co(II)$ complex having magnetic moment of $3.95 \ BM$ is :