Which one of the following does not have a pyramidal shape?

Match the molecules in List-$I$ with their correct geometries in List-$II$ according to $VSEPR$ theory:

List-$I$	List-$II$
$(A)$ $PCl_3$	$(I)$ Square planar
$(B)$ $BF_3$	$(II)$ $T$-shape
$(C)$ $ClF_3$	$(III)$ Trigonal pyramidal
$(D)$ $XeF_4$	$(IV)$ See-saw
	$(V)$ Trigonal planar

Which set of the following molecules has only one lone pair of electrons on their respective central atoms?
$(i)$ $SO_2$
$(ii)$ $XeF_4$
$(iii)$ $PbCl_2$
$(iv)$ $SF_4$
$(v)$ $ClF_3$

Which of the following is the correct order for increasing bond angle?

The bond angle in ammonia molecule is

The sets of molecules in which the central atom has no lone pair of electrons are:
$i$. $SnCl_2, NH_3, SF_4$
$ii$. $HgCl_2, SO_3, SF_6$
$iii$. $BeCl_2, BF_3, PCl_5$
$iv$. $ClF_3, BrF_5, XeF_6$