UPSC Prelims PYQ 2000: Matching industrial processes with associated industries
Match List I (Industrial processes) with List II (Industry with which associated) and select the correct answer:
| List I | List II |
| I. Cracking | A) Rubber |
| II. Smelting | B) Petroleum |
| III. Hydrogenation | C) Copper |
| IV. Vulcanization | D) Edible fats |
Codes:
- I-C, II-B, III-A, IV-D
- I-B, II-C, III-D, IV-A
- I-B, II-C, III-A, IV-D
- I-C, II-B, III-D, IV-A
Explanation
Option (b) is correct
- Cracking is associated with the petroleum industry, where large hydrocarbon molecules are broken into smaller and more useful products such as petrol. Smelting is related to the extraction of metals like copper from their ores through heating and reduction. Hydrogenation is used in the edible fats industry to convert vegetable oils into semi-solid fats like vanaspati. Vulcanization is associated with the rubber industry, where rubber is treated with sulphur to improve its strength, elasticity, and durability.
Answer: (b) I-B, II-C, III-D, IV-A
