SSC MTS EXAM

Detailed explanation-1: -There are four examples of molecules made from non-metals which form giant structures. They are silicon, silicon dioxide and two forms of the element carbon called diamond and graphite polymers are a different kind of large molecule.

Detailed explanation-2: -Covalent solid are known as giant or macromolecule because in covalent solids atoms are bonded to neighbour atoms to form a network and have a huge molecular mass.

Detailed explanation-3: -It is not a molecule, because the number of atoms joined up in a real diamond is completely variable-depending on the size of the crystal.

Detailed explanation-4: -Graphite is another giant covalent structure; that is, a single molecule extending into macroscopic space, but the arrangement of carbon atoms is entirely different in graphite than in diamond.