Match List I with List II : Choose the correct answer from the options given…
2020
Match List I with List II :
Choose the correct answer from the options given below :
- A.
(A)-(I), (B)-(III), (C)-(IV), (D)-(II)
- B.
(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
- C.
(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
- D.
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
Show answer & explanation
Correct answer: D
Concept
Toxic organic substances are matched with the process in which they are manufactured, used, or formed as by-products.
Chlorinated industrial chemicals are linked to their principal applications, whereas polycyclic aromatic hydrocarbons arise mainly during incomplete combustion.
Application
Apply that distinction to each substance and source:
Substance | Major source | Reason for the association |
|---|---|---|
Vinyl chloride | Plastics industrial uses | It is the monomer used to manufacture polyvinyl chloride (PVC). |
Polychlorinated biphenyls (PCBs) | Electrical insulation | Their chemical stability and dielectric properties led to their use in transformers, capacitors, and related equipment. |
Benzo(a)pyrene | Waste incineration | It can form when organic waste burns incompletely at high temperature. |
Polycyclic aromatic hydrocarbons | Fuel combustion | This compound group is produced by incomplete combustion of coal, oil, gas, wood, and other fuels. |
Cross-check and contrast
The mapping (A)-(I), (B)-(III), (C)-(IV), (D)-(II) reverses the two industrial-use associations.
The mapping (A)-(I), (B)-(III), (C)-(II), (D)-(IV) reverses both the industrial-use pair and the combustion-source pair.
The mapping (A)-(III), (B)-(IV), (C)-(II), (D)-(I) mixes a PCB with incineration and assigns PAHs to insulation.
Result
Therefore, the required matching is (A)-(III), (B)-(I), (C)-(IV), (D)-(II).