Who gave the principle of $VSEPR$?

What is the structure of $IF_7$?

Amongst $ClF_3$,$BF_3$ and $NH_3$ molecules,the one with non-planar geometry is:

Number of bonding electron pairs and number of lone pairs of electrons in $ClF_3$,$SF_4$,$BrF_5$ respectively are

Based on the $VSEPR$ model,match the xenon compounds given in List-$I$ with the corresponding geometries and the number of lone pairs on xenon given in List-$II$ and choose the correct option.

List-$I$	List-$II$
$(P)$ $XeF_2$	$(5)$ Trigonal bipyramidal and three lone pairs of electrons
$(Q)$ $XeF_4$	$(3)$ Square planar and two lone pairs of electrons
$(R)$ $XeO_3$	$(2)$ Pyramidal and one lone pair of electrons
$(S)$ $XeO_3F_2$	$(4)$ Trigonal bipyramidal and no lone pairs of electrons

Which of the following molecules is linear and possesses the maximum number of lone pairs on the central atom?