Final answer:
Sodium chloride does not exist as a giant covalent lattice.
Step-by-step explanation:
A covalent lattice is a type of crystal structure where atoms are held together by covalent bonds. Graphite, graphene, and fullerene are all examples of giant covalent lattices. However, sodium chloride does not exist as a giant covalent lattice. Instead, sodium chloride forms an ionic lattice where sodium ions and chloride ions are held together by electrostatic attractions.