Match the compounds given in List-I with their application given in List-II

Choose the correct answer from the options given below:

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

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

(A) $\text{TiO}_2$ (Titanium Dioxide) $\rightarrow$ (III) pigment industry: $\text{TiO}_2$ is an extremely white, opaque substance with a high refractive index. It is the most widely used white pigment in the world, valued for its brightness and covering power in paints, coatings, plastics, and papers.

(B) $\text{AgBr}$ (Silver Bromide) $\rightarrow$ (IV) photographic industry: Silver halides, particularly $\text{AgBr}$, are the light-sensitive components in traditional photographic film and paper. When exposed to light, the $\text{AgBr}$ crystals undergo a photochemical reaction, forming latent images that can be developed.

(C) $\text{MnO}_2$ (Manganese Dioxide) $\rightarrow$ (I) dry battery cells: $\text{MnO}_2$ acts as the cathode (positive electrode) material and a depolarizer in standard Leclanché dry cells (carbon-zinc batteries) and alkaline batteries.

(D) $\text{PdCl}_2$ (Palladium Chloride) $\rightarrow$ (II) Wacker process: $\text{PdCl}_2$ is used as a catalyst in the industrial Wacker process (also known as the Hoechst-Wacker process), which oxidizes ethylene ($\text{C}_2\text{H}_4$) to acetaldehyde ($\text{CH}_3\text{CHO}$) using oxygen in an aqueous medium.