Match List I with List II

Choose the correct answer from the options given below:

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

The correct answer is option 4. (A)-(III), (B)-(I), (C)-(II), (D)-(IV).

(A) Molecular solid - (III) \(CCl_4\): Molecular solids are composed of individual molecules held together by intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonding. In \(CCl_4\) (carbon tetrachloride), discrete \(CCl_4\) molecules are held together by weak van der Waals forces.

(B) Ionic solid - (I)\(CaF_2\): Ionic solids consist of positively charged metal cations and negatively charged nonmetal anions held together by electrostatic forces of attraction. In \(CaF_2\) (calcium fluoride), calcium (Ca\(^{2+}\)) cations are attracted to fluoride (F\(^-\)) anions, forming a three-dimensional lattice structure.

(C) Metallic solid - (II)\(Cu\): Metallic solids are characterized by having delocalized electrons that are free to move throughout the solid structure, resulting in high electrical conductivity. They typically have metallic bonding, where metal cations are surrounded by a "sea" of delocalized electrons. Copper (\(Cu\)) is a metal that exhibits metallic bonding.

(D) Covalent solid - (IV_\(SiC\): Covalent network solids are composed of atoms held together by an extensive network of covalent bonds. In \(SiC\) (silicon carbide), each silicon (Si) atom is covalently bonded to four carbon (C) atoms, and each carbon atom is bonded to four silicon atoms, forming a three-dimensional network structure.

So, the matches are as follows:

(A) Molecular solid - (III) \(CCl_4\)

(B) Ionic solid - (I) \(CaF_2\)

(C) Metallic solid - (II) \(Cu\)

(D) Covalent solid - (IV) \(SiC\)

Therefore, the correct match is option 4: (A)-(III), (B)-(I), (C)-(II), (D)-(IV).