Match LIST-I with LIST-II. LIST-I (Hazardous-waste-producing industry) LIST-II…
2024
Match LIST-I with LIST-II.
LIST-I (Hazardous-waste-producing industry) | LIST-II (Hazardous waste) |
|---|---|
A. Electrical insulation | I. Toxic metals |
B. Fertilizers | II. Dyes |
C. Leather | III. Polychlorinated biphenyls (PCBs) |
D. Textile | IV. Nitric acid |
Choose the correct answer from the options given below:
Answer: C. A-III, B-IV, C-I, D-II — ConceptIndustrial hazardous wastes arise from chemicals used as process inputs and from residues generated during manufacturing. To match an industry with a…
- A.
A-II, B-IV, C-III, D-I
- B.
A-I, B-III, C-IV, D-II
- C.
A-III, B-IV, C-I, D-II
- D.
A-III, B-IV, C-II, D-I
Show answer & explanation
Correct answer: C
Concept
Industrial hazardous wastes arise from chemicals used as process inputs and from residues generated during manufacturing.
To match an industry with a waste, identify the characteristic chemical used or released by that industry's standard process. Dielectric fluids, mineral acids, tanning agents and colourants are the relevant process-chemical groups here.
Application
Industry | Characteristic hazardous waste | Process link |
|---|---|---|
Electrical insulation | Polychlorinated biphenyls (PCBs) | PCBs were historically used as dielectric and insulating fluids in transformers, capacitors and related electrical equipment. |
Fertilizers | Nitric acid | Nitric acid is an industrial input for producing nitrate fertilizers, so acid-bearing residues are associated with this industry. |
Leather | Toxic metals | Chrome tanning uses chromium compounds, producing metal-bearing hazardous waste. |
Textile | Dyes | Dyeing and printing operations generate dye-bearing wastewater and residues. |
Cross-check
Each waste is used once, and every pair follows the characteristic process chemical of its industry.
Therefore, the matching sequence is A–III, B–IV, C–I, D–II.