Major Minerals — Set 5

Correct Answer: B. Coal

• **Coal** = India's primary source of commercial energy, providing approximately 55% of the country's total energy needs. • **55% of India's energy** — coal is predominantly used for thermal power generation; India has the fourth-largest coal reserves in the world. • 💡 Wrong-option analysis: Petroleum: second most important energy source but contributes less than coal to India's energy mix; Uranium: used in nuclear power which contributes a small fraction of India's total energy; Natural Gas: cleaner fuel but contributes less than coal to India's commercial energy.

Correct Answer: C. Hematite

• **Hematite** = the most industrially important iron ore in India due to its abundant quantities, with 50-60% metallic iron content. • **Backbone of Indian steel** — hematite is found in large deposits across Odisha, Chhattisgarh, and Karnataka; it is the primary ore for India's iron and steel industry. • 💡 Wrong-option analysis: Magnetite: highest quality (70% iron) but less abundant than hematite in India; Limonite: lower grade iron ore, less industrially important; Siderite: iron carbonate with lower iron content, economically less significant in India.

Correct Answer: B. Madhya Pradesh

• **Madhya Pradesh** = the state where Malanjkhand copper mines are situated, home to India's largest open-pit copper mine. • **India's largest open-pit mine** — Malanjkhand in Balaghat district is India's largest open-pit copper mine, operated by Hindustan Copper Limited. • 💡 Wrong-option analysis: Rajasthan: has Khetri copper mines, significant but Malanjkhand is the largest open-pit; Karnataka: has some copper deposits but not Malanjkhand; Jharkhand: has Singhbhum copper deposits but Malanjkhand is in Madhya Pradesh.

Correct Answer: D. Iron Ore

• **Iron Ore** = the mineral found in abundance in the Jharkhand-Odisha-Chhattisgarh plateau region (Chota Nagpur), forming India's industrial heartland. • **Chota Nagpur steel belt** — the proximity of coal and iron ore in this region led to major steel plants at Jamshedpur, Bhilai, Rourkela, and Bokaro. • 💡 Wrong-option analysis: Copper: while Jharkhand has some copper (Singhbhum), iron ore is the most abundant mineral of this plateau; Mica: mica is from Jharkhand and Andhra Pradesh but not the dominant mineral of the Chota Nagpur plateau; Gold: gold is from Karnataka, not the primary mineral of this region.

Correct Answer: D. Rajasthan

• **Rajasthan** = the leading producer of silver in India, primarily as a byproduct of lead and zinc ore refining. • **Byproduct of lead-zinc** — silver is extracted during the refining of lead-zinc ores; Rajasthan's Rampura-Agucha mines yield significant silver as a byproduct. • 💡 Wrong-option analysis: Karnataka: known for gold (Hutti, KGF) not silver production; Gujarat: not a significant silver producer; Andhra Pradesh: has some mineral wealth but not the leading silver producer.

Correct Answer: C. Uranium

• **Uranium** = the primary fuel used in nuclear reactors to generate electricity through fission chain reactions. • **Jaduguda and Tummalapalle** — India's major uranium mines are at Jaduguda (Jharkhand) and Tummalapalle (Andhra Pradesh); nuclear energy is a low-carbon power source. • 💡 Wrong-option analysis: Graphite: used as a moderator in some nuclear reactors but not the fuel itself; Lignite: brown coal used for thermal power generation, not nuclear; Coal: fossil fuel for thermal power, produces greenhouse gases, unlike nuclear fuel.

Correct Answer: A. Odisha

• **Odisha** = the state with the largest bauxite reserves in India, concentrated in the Eastern Ghats, supporting major aluminum companies like NALCO. • **NALCO's Panchpatmali** — Odisha's Panchpatmali deposit in Koraput is India's largest bauxite deposit, providing raw material for NALCO's aluminum complex. • 💡 Wrong-option analysis: Maharashtra: has minor bauxite in Kolhapur; Gujarat: no significant bauxite reserves; Chhattisgarh: has iron ore and coal as primary minerals, not bauxite.

Correct Answer: A. Odisha

• **Odisha** = the state where the Talcher coalfield is located, in the Mahanadi river valley. • **Mahanadi valley** — Talcher coalfield in Odisha lies in the Mahanadi river valley; it is one of India's largest coalfields, supplying coal for power generation. • 💡 Wrong-option analysis: Jharkhand: has Jharia and Bokaro coalfields in Damodar valley; Chhattisgarh: has Korba coalfield; West Bengal: has Raniganj coalfield.

Correct Answer: B. Petroleum

• **Petroleum** = sometimes called 'Liquid Sun' because it is stored solar energy from fossilized ancient plant and animal remains. • **Fossilized solar energy** — petroleum formed millions of years ago from organisms that stored solar energy; it is the most critical liquid fuel driving global transportation. • 💡 Wrong-option analysis: Mercury: a liquid metal element, not called 'Liquid Sun'; Molten Iron: produced in blast furnaces, not a naturally occurring energy resource; Liquid Hydrogen: a cryogenic fuel, not found naturally in liquid form.

Correct Answer: B. Mica

• **Mica** = the mineral for which Koderma in Jharkhand is the leading producer, earning it the title 'Mica Capital of India.' • **Mica Capital of India** — Koderma district in Jharkhand-Bihar mica belt is India's premier mica-producing area, with high-quality muscovite mica for electronics. • 💡 Wrong-option analysis: Iron Ore: Jharkhand has iron ore but Koderma is specifically known as the mica capital; Uranium: Jaduguda in Jharkhand is the uranium mine, not Koderma; Coal: Jharkhand has major coalfields but Koderma is specifically famous for mica.