Major Minerals — Set 2

Correct Answer: A. Karnataka

• **Karnataka** = the state where the Kudremukh iron ore mines are located, in the Western Ghats region. • **Slurry pipeline export** — Kudremukh mines were unique for exporting iron ore in slurry form via pipeline to Mangaluru port; 'Kudremukh' means horse-face. • 💡 Wrong-option analysis: Maharashtra: does not have significant iron ore mines of this name; Andhra Pradesh: has some iron deposits but not Kudremukh; Goa: has iron ore mining but Kudremukh is specifically in Karnataka's Western Ghats.

Correct Answer: D. Jharkhand

• **Jharkhand** = the state with the highest coal reserves in India, particularly in the Damodar Valley with famous coalfields like Jharia and Bokaro. • **Jharia coking coal** — Jharkhand's Jharia coalfield is the primary source of coking coal for India's steel industry, the highest quality coal in the country. • 💡 Wrong-option analysis: Chhattisgarh: has significant coal (Korba), second in production but not first in reserves; Odisha: has Talcher coalfield, significant but reserves less than Jharkhand; West Bengal: has Raniganj coalfield, historically important but smaller reserves.

Correct Answer: C. Thorium

• **Thorium** = the radioactive element concentrated in monazite sands on the Kerala coast, potential fuel for India's 3-stage nuclear program. • **India's nuclear program** — thorium is considered a key fuel for the third stage of India's nuclear power program; India has one of the world's largest thorium reserves. • 💡 Wrong-option analysis: Zirconium: also present in beach sands but monazite is specifically the thorium-bearing mineral; Uranium: found at Jaduguda, Jharkhand and Tummalapalle, AP, not primarily in Kerala monazite; Titanium: ilmenite (titanium ore) is found in beach sands but monazite specifically contains thorium.

Correct Answer: D. Petroleum

• **Petroleum** = known as 'Liquid Gold' due to its immense value as a fuel and raw material for petrochemical industries. • **Sedimentary basin origin** — petroleum is found in sedimentary basins; India's major fields include Bombay High (Arabian Sea), Ankleshwar, and Digboi (Assam). • 💡 Wrong-option analysis: Mercury: a liquid metal element, not called 'Liquid Gold'; Molten Gold: literal melted gold, not a mineral resource category; Honey: a food product, not a mineral.

Correct Answer: D. Oil Well

• **Oil Well** = what Digboi in Assam is famous for, being the site of India's first operational oil well, discovered in the late 19th century. • **1889, birthplace of Indian oil** — Digboi oil well was drilled in 1889, making it the birthplace of India's petroleum industry; the Digboi refinery is one of the world's oldest refineries. • 💡 Wrong-option analysis: Iron Factory: Jamshedpur (Tata Steel) is India's first modern iron/steel plant; Mica Mine: mica is mined primarily in Jharkhand and Andhra Pradesh; Coal Mine: Raniganj in West Bengal is India's first coal mining area.

Correct Answer: C. Mica

• **Mica** = a non-metallic mineral occurring as plates or leaves, indispensable for the electrical industry due to its dielectric strength. • **Electrical insulator** — mica's excellent dielectric properties and heat resistance make it essential for capacitors, insulation in electrical devices, and electronics. • 💡 Wrong-option analysis: Copper: a metallic mineral used for electrical conductors, not a non-metal; Iron Ore: a metallic mineral used for steel production; Bauxite: a metallic ore (aluminum ore), not non-metallic.

Correct Answer: A. Copper

• **Copper** = the mineral primarily produced by the Balaghat mines in Madhya Pradesh's Malanjkhand belt. • **Malanjkhand belt** — the copper-rich geological belt in Balaghat district, Madhya Pradesh, hosting India's largest open-pit copper mine. • 💡 Wrong-option analysis: Limestone: found in Madhya Pradesh but Balaghat is known for copper, not limestone; Lead: lead is from Rajasthan's Zawar and Rampura-Agucha mines; Silver: silver is a byproduct of lead-zinc refining in Rajasthan.

Correct Answer: C. Rajasthan

• **Rajasthan** = the leading producer of gypsum in India, accounting for nearly the entire national output. • **Cement and fertilizer use** — gypsum is primarily used in cement production, fertilizers, and Plaster of Paris; it also treats soil alkalinity in agriculture. • 💡 Wrong-option analysis: Gujarat: has salt production but not leading gypsum producer; Tamil Nadu: has significant mineral production but not leading in gypsum; Haryana: agricultural state, minor mineral production.

Correct Answer: C. Iron Ore

• **Iron Ore** = the mineral for which Bailadila mines in Chhattisgarh are famous, known for very high-grade hematite ore. • **Exported via Visakhapatnam** — Bailadila's high-grade iron ore is largely exported to Japan and South Korea through Visakhapatnam port; 'Bailadila' means 'hump of an ox.' • 💡 Wrong-option analysis: Copper: copper comes from Rajasthan and Madhya Pradesh, not Bailadila; Bauxite: bauxite is from Odisha's Eastern Ghats; Manganese: manganese is from Odisha, Maharashtra, not primarily Bailadila.

Correct Answer: B. Limestone

• **Limestone** = the essential raw material for the cement industry, composed of calcium carbonate or calcium-magnesium carbonates. • **Cement and steel flux** — limestone is used both in cement manufacturing and as a flux in blast furnaces to remove impurities when smelting iron ore. • 💡 Wrong-option analysis: Gold: a precious metal, not used in cement; Mica: electrical insulator, not used in cement manufacture; Gypsum: added to cement in small quantities to control setting time but limestone is the primary raw material.