Minerals Resources

11. The iron-ore reserves of India are associated with which of the following rock systems? [U.P. B.E.O. (Pre) 2013]

(a) Dharwar
(b) Cuddappah
(c) Vindhyan
(d) Gondwana

Correct Answer: (a) Dharwar

Solution:Iron ore in India is found mainly in Dharwar rock system. Dharwar- rock system is the most important rock system in terms of economic value in India. The Dharwar system is older than the Archean system, but not as old as the others. From 2500 million years ago to 1800 million years ago, the Dharwar era of rock creation was mostly constant. The Dharwar Rock System is unique in that it is India's earliest metamorphic sedimentary rocks. Due to being initially examined in the Dharwad district of Karnataka, they are known as the Dharwar system. However, they may be found in the Aravallis, Tamil Nadu, Chotanagpur plateau, Meghalaya, Delhi, and the Himalayas. Iron ore, manganese, lead, zinc, gold, and silver are all abundant in the Dharwar rocks.

12. Which of the following geological systems of rocky contain a rich reserve of iron ore in India? [U.P.R.O./A.R.O. (Mains) 2014, U.P.P.C.S. (Mains) 2012]

(a) Vindhyan system
(b) Cuddapah system
(c) Gondwana system
(d) Dharwar system

Correct Answer: (d) Dharwar system

Solution:Iron ore in India is found mainly in Dharwar rock system. Dharwar- rock system is the most important rock system in terms of economic value in India. The Dharwar system is older than the Archean system, but not as old as the others. From 2500 million years ago to 1800 million years ago, the Dharwar era of rock creation was mostly constant. The Dharwar Rock System is unique in that it is India's earliest metamorphic sedimentary rocks. Due to being initially examined in the Dharwad district of Karnataka, they are known as the Dharwar system. However, they may be found in the Aravallis, Tamil Nadu, Chotanagpur plateau, Meghalaya, Delhi, and the Himalayas. Iron ore, manganese, lead, zinc, gold, and silver are all abundant in the Dharwar rocks.

13. Which two of the following states are the leading producers of Iron-Ore in India as per the Annual Report of the Ministry 2020-21? [U.P.P.C.S. (Pre) 2021]

1. Odisha

2. Chhattisgarh

3. Jharkhand

4. Karnataka

Select the correct answer from the code given below:

Code:

(a) 1 and 2
(b) 1 and 4
(c) 1 and 3
(d) 2 and 4

Correct Answer: (b) 1 and 4

Solution:According to the Annual Report 2022-23 of the Ministry of Mines, Government of India, the following are the top iron ore producing states in India. Odisha (53.82%), Chhattisgarh (16.27%), Karnataka (15.88%) and Jharkhand (9.74%) respectively.

14. The two states of India, most richly endowed with iron ore, are [56th to 59th B.P.S.C. (Pre) 2015]

(a) Bihar and West Bengal
(b) Madhya Pradesh and Odisha
(c) Bihar and Odisha
(d) Madhya Pradesh and West Bengal

Correct Answer: (b) Madhya Pradesh and Odisha

Solution:According to IMYB, 2021 the States (according to option) which are rich in Iron Ore in thousand tonnes (Haematite + Magnetite)are as follows: Odisha (9409573 thousand tonnes), Madhya Pradesh (356999 thousand tonnes), Bihar (49494 thousand tonnes). The availability of Haematite is in Odisha, Jharkhand, Chhattisgarh, Karnataka and Goa etc. While Magnetite is found in Karnataka, Rajasthan, Andhra Pradesh and Tamil Nadu etc.

15. Which of the following is an iron-region [U.P.P.C.S. (Pre) 1992]

(a) Siwan
(b) Jharia
(c) Kudremukh
(d) Singhbhum

Correct Answer: (c) Kudremukh

Solution:Kudremukh is famous for iron-ore mine in Karnataka. Mostly Magnetite iron-ore is found in Karnataka. Singhbhum (Current Western Singhbhum) are also famous for the Iron area.

16. Iron Ore is not available in which of the following [38 B.P.S.C. (Pre) 1992]

(a) Bihar
(b) Madhya Pradesh
(c) Odisha
(d) Punjab

Correct Answer: (d) Punjab

Solution:India has four major iron-one producing regions-

Region	States
North-East Region	Jharkhand, Odisha
Central India Region	Madhya Pradesh, Chhattisgarh, Maharashtra
Peninsular Region	Karnataka, Goa
Other areas	Andhra Pradesh, Rajasthan, Kerala, Gujarat, Haryana, West Bengal

This is notable that at the time when this question was asked, Jharkhand was part of Bihar. Hence, the correct answer would be(d).

17. Which mineral is found in Nathra-ki-Pal area of Rajasthan? [R.A.S/R.T.S.(Pre) 2008]

(a) Iron ore
(b) Copper
(c) Lead and Zinc
(d) Manganese

Correct Answer: (a) Iron ore

Solution:Nathra-Ki-Pal area of Rajasthan is famous for Iron Ore.

Iron ore is the most important metallic ore. It is known as the backbone of modern civilization. Many industries depend on iron, and hence it is also known as the fundamentals of all industries. Iron Ore is a naturally occurring solid material from which valuable minerals are extracted for commercial use. Iron ores are rocks and minerals that can be economically extracted to produce metallic iron. They are generally rich in iron oxides. They come in various colours such as dark grey, bright yellow, rusty red, deep purple, etc.
Iron Ore Types
Magnetite (FE3O4): This is a high-quality ore with about 70% iron. It's black and magnetic.
Haematite (FE2O3): This reddish ore has 60-70% iron.
Limonite: This yellowish ore contains 40-60% iron.
Siderite: This ore has less than 40% iron and many impurities, making it often not worth mining. Haematite and magnetite are the
most important iron ores in India.
About 79% haematite ore deposits are found in the Eastern Sector (Assam, Bihar, Chhattisgarh, Jharkhand, Odisha and Uttar Pradesh).
About 93% magnetite ore deposits occur in the Southern Sector (Karnataka, Andhra Pradesh, Goa, Kerala and Tamil Nadu).
Karnataka contributes around 70% of India's magnetite deposits.
Top Iron Ore producing counties: (1) Australia (2) Brazil (3) China (4) India. Top 3 Iron-ore producing states of India: (1) Odisha (2)
Karnataka (3) Chhattisgarh.

18. Match the List-I with List-II and select the correct answer from the codes given below: [U.P.P.C.S.(MAINS) 2017]

List-I (Mineral)	List-II (Country)
A. Silver	1. Chile
B. Mica	2. Russian Federation
C. Iron Ore	3. Mexico
D. Copper	4. India

Codes:

Code	A	B	C	D
(a)	3	4	2	1
(b)	2	3	4	1
(c)	3	2	1	4
(d)	3	1	4	2

(a)
(b)
(c)
(d)

Correct Answer: (a)

Solution:The matching of the country in question and their related minerals is as follows:

Country	Mineral
Chile	Copper
India	Mica
Russian Federation	Iron Ore
Mexico	Silver

19. Which of the following Iron ores is mined at Bailadila? [60th to 62 B.P.S.C. (Pre) 2016]

Correct Answer: (a) Haematite

Solution:Haematite iron ore is mined at Bailadila which is located in Dantewada district of Chhattisgarh. Haematite is a high quality iron ore. It is mainly found in the states of Chhattisgarh, Jharkhand, Odisha, Karnataka, Maharashtra, Andhra Pradesh and Goa etc. Magnetite which is comparatively high grade in terms of percentage of Iron content is found in the states of Karnataka, Andhra Pradesh, Rajasthan, Tamil Nadu etc.

20. Bailadila mines are related to which mineral- [U.P.P.C.S. (Pre) 2015, Uttarakhand U.D.A./L.D.A. (Mains) 2006]

(a) Iron ore
(b) Coal
(c) Manganese ore
(d) Mica