Which of the following geometries corresponds to $sp^3d$ hybridization of the central atom?

The mode of hybridisation of carbon in $CO_2$ is

The molecule having $sp^3d^2$ hybridisation is

What is the type of hybridization in $ICl_7$?

Describe the shapes of $BF_3$ and $BH_4^-$. Assign the hybridisation of boron in these species.

In which of the following molecules,the number of lone pairs of electrons on the central atom and the number of $d$-orbitals involved in the hybridisation of the central atom are the same?