In which of the following pairs is the product of the Lewis acid and Lewis base reaction also a Lewis base?

The pair of molecules/ions with the same geometry but central atoms in different states of hybridization is:

Which of the following orders is not correct?

Fill in the blanks given below:
$(i)$ The electronic configuration of noble gases is .......... .
$(ii)$ The bond formed by electrostatic attraction between a cation and an anion is called ........... .
$(iii)$ The octet rule is also known as ............ .
$(iv)$ The equilibrium distance between the centers of two bonded atoms in a molecule is called .......... .

Which of the following molecules or ions possesses electrovalent,covalent,and coordinate bonds at the same time?

The angular shape of ozone molecule $(O_3)$ consists of