Chemistry - CHEMICAL BONDING Question with Solution | TestHub

A three-dimensional network structure is formed when atoms are connected throughout the crystal by strong covalent bonds.

• SiO₂ → forms a 3D network of Si–O covalent bonds (giant covalent solid).
• (BN)ₓ → boron nitride forms a covalent network structure similar to graphite/diamond.
• White phosphorus (P₄) → exists as discrete P₄ molecules, not a 3D network.
• CCl₄ → molecular solid with weak intermolecular forces, not a network.

Correct Answer: (A) SiO₂ and (B) (BN)ₓ