The
?
benzene
ring
?
is
a
____________________
important
functional
group
which
is
____________________
in
many
____________________
compounds
,
that
are
commercially
important
(
medicines
,
____________________
)
.
A
benzene
ring
is
a
hexagon
made
of
six
____________________
atoms
____________________
together
in
a
particular
way
.
Organic
compounds
containing
one
or
more
benzene
rings
are
called
Arenes
,
but
in
general
are
also
known
as
Aryl
compounds
or
Aromatic
compounds
.
