When excess of ammonia is added to copper sulphate solution,the deep blue coloured complex is formed. The complex is

In an octahedral structure,which pair of $d$-orbitals is involved in ${d^2}sp^3$ hybridization?

Which of the following complexes has its hybridisation correctly matched?

What type of hybridisation is present in square planar geometry of complex $[Ni(CN)_4]^{2-}$?

Which of the following statements is incorrect?

Identify the $CORRECT$ set of details from the following:
$A$. $[Co(NH_{3})_{6}]^{3+}$: Inner orbital complex; $d^{2}sp^{3}$ hybridized
$B$. $[MnCl_{6}]^{3-}$: Outer orbital complex; $sp^{3}d^{2}$ hybridized
$C$. $[CoF_{6}]^{3-}$: Outer orbital complex; $d^{2}sp^{3}$ hybridized
$D$. $[FeF_{6}]^{3-}$: Outer orbital complex; $sp^{3}d^{2}$ hybridized
$E$. $[Ni(CN)_{4}]^{2-}$: Inner orbital complex; $sp^{3}$ hybridized
Choose the correct answer from the options given below: