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Q49
(CDS-I/2007)
History & Culture › National Movement (1857–1947) › Indian National Congress
Answer Verified
Match List-I with List-I I and select the correct answer using the codes given below the Lists
(Mineral ) | (Industries in Which Largely Used)
A. Limestone | 1. Cement
B. Copper | 2. Electrical Goods
C. Bauxite | 3. Manufacture of aeroplanes
D. Maganese | 4. Steel
Result
Your answer:
—
·
Correct:
B
Explanation
The correct answer is Option 2 (A-1, B-2, C-3, D-4). This matching correctly aligns each mineral with its primary industrial application based on its physical and chemical properties.
- Limestone (A-1): It is the essential raw material for the Cement industry, providing the necessary calcium carbonate for production.
- Copper (B-2): Due to its excellent electrical conductivity and ductility, copper is the primary metal used in Electrical Goods like wires, motors, and cables.
- Bauxite (C-3): As the principal ore of aluminum, bauxite is vital for the Manufacture of aeroplanes. Aluminum’s high strength-to-weight ratio and corrosion resistance are indispensable in aviation.
- Manganese (D-4): It is a crucial input in the Steel industry, used for deoxidizing and desulfurizing iron, and for creating tough, wear-resistant steel alloys.
Options 1, 3, and 4 are incorrect as they misalign these fundamental industrial associations, such as linking limestone to aviation or copper to steel production.
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