Match the type of interaction in column A with the distance dependence of their interaction energy in column B

A	B
(i) ion-ion	(a) $${1 \over r}$$
(ii) dipole-dipole	(b) $${1 \over {{r^2}}}$$
(iii) London dispersion	(c) $${1 \over {{r^3}}}$$
	(d) $${1 \over {{r^6}}}$$

If AB₄ molecule is a polar molecule, a possible geometry of AB₄ is

The number of sp² hybrid orbitals in a molecule of benzene is :

If the magnetic moment of a dioxygen species is 1.73 B.M, it may be :