What is the geometry of the $PCl_5$ molecule as per $VSEPR$ theory?

$A$ molecule with the formula $AX_4Y$ has all its elements from the $p-$block. Element $A$ is the rarest,monoatomic,non$-$radioactive element from its group and has the lowest ionization enthalpy value among $A, X,$ and $Y$. Elements $X$ and $Y$ have the first and second highest electronegativity values,respectively,among all known elements. The shape of the molecule is:

Match the molecular geometries in List-$I$ with their corresponding molecules in List-$II$:

$A$. Trigonal planar	$I$. $PCl_5$
$B$. Tetrahedral	$II$. $SF_6$
$C$. Trigonal bipyramidal	$III$. $BF_3$
$D$. Octahedral	$IV$. $CCl_4$

The correct match for $A, B, C, D$ is:

Identify the wrongly matched pair.
Molecule $\quad$ $\quad$ Shape or geometry of molecule

Out of $CHCl_3$,$CH_4$,and $SF_4$,the molecules that do not have regular geometry are

What do you understand by bond pairs and lone pairs of electrons? Illustrate by giving one example of each type.