Match of the following columns:

Column-I	Column-Il
(a) ${\mathrm{CH}}_4$	(p) Molecules are associated by hydrogen bonding
(b)  ${\mathrm{H}}_2\mathrm{O}$	(q) All bond angles are ${109}^{\circ }{28}^{\mathrm{\prime }}$
(c) ${\mathrm{OCl}}_2$	(r) Non-zero dipole momenl
(d) ${\mathrm{SF}}_4$	(s) Zero dipole moment
	(t) Molecule is hypervalenl

The bond angle of methane ${\mathrm{CH}}_4$ is 109.5 degrees. This molecule has a dipole moment of zero.
In liquid water, hydrogen bonding occurs when the hydrogen atoms of one water molecule are drawn to the oxygen atom of a neighbouring water molecule.
Dichlorine monoxide ${\mathrm{OCl}}_2$ is an inorganic compound with nonpolar molecules and a net-zero dipole moment.
The geometry of ${\mathrm{Sf}}_4$ will be an asymmetric electron region distribution around the central atom (S). This molecule is thus polar.