Question

Shape of the molecule having ${dsp}^2$ and $d^2$${sp}^3$ hybridisation is respectively:

• A. Square planar and Trigonal bipyramidal
• B. Tetrahedral and Octahedral
• C. Octahedral and Square planar
• D. Square planar and octahedral

Answer 1

The correct option is D

Square planar and octahedral

We know that

1s + 1p $\to$ 2 $sp$ hybrid oribitals

1s + 2p $\to$ 3 ${sp}^2$ hybrid oribitals

1s + 3p $\to$ 4${sp}^3$ hybrid oribitals

1s + 2p + 1d $\to$ 5${sp}^3$d hybrid oribitals

1s orbital + 3p orbital + 2d orbital $\Rightarrow$ 6 hybrid orbitals.

So,lets arrange all 6 ${sp}^3$$d^2$ hybrid oribtal around arbital.

It comes out to be like this.

This is knowm as square bipyramidal or octahedral. [All the angles are ${90}^{\circ }$]

${sp}^3$$d^2$ $\Rightarrow$ Octahedral

Shape of the molecule having ${dsp}^2$ is square planar as we discussed in the videos.