Yes Graphite is a macromolecule and called as macromolecule crystal.
It is made up of carbon atoms at lattice point that of diamonds, the only difference is Graphite form two dimensional lattice where as diamond form three dimensionla lattice. Thus diamonds are much more stronger than graphite.
Certainly, Graphite is a macromolecule since it has a stong lattice structure and forms a 2D lattice structure. Hence, enabling graphite to conduct electricity eventhough it is covalently bonded by carbon atoms.
Yes. Graphite is a macromolecule. The best example is our pencil lead. It is made up of graphite