General Awareness · Geography

Minerals and Ores

1,167 Questions

Minerals and ores encompass the extraction, identification, and economic significance of naturally occurring crystalline substances. Topics cover specific ores like cinnabar and bauxite, alongside global mineral resource distribution. Candidates preparing for general awareness and geography sections should review these questions to master regional and global mineral reserves.

Ore identificationMineral extractionGlobal mineral reservesIndustrial minerals

Minerals and Ores Questions

Multiple choice

Which of the following statements is/are correct?

a. India has sufficient reserves for production of copper. b. Being malleable, ductile and a good conductor, copper is mainly used in electrical cables, electronics and chemical industries. c. India’s copper deposits are mainly found in the Amarkantak plateau, Maikal hills and the plateau region of Bilaspur-Katni.

  1. a, b and c

  2. a and c

  3. b and c

  4. a and b

  5. only b
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer as this statement is correct.

Multiple choice

Durg-Bastar-Chandrapur belt lies in Chhattisgarh and Maharashtra. Which of the following minerals is found here?

  1. Coal

  2. Iron ore

  3. Manganese ore

  4. Copper

  5. Bauxite
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer. Very high grade hematites are found in this belt. The range of hills has 14 deposits of super high grade hematite iron ore. It has the best physicalproperties needed for steel making. Iron ore from these mines is exported to Japan and South Korea via Vishakhapatnam port.

Multiple choice

One mode of formation of minerals involves the decomposition of surface rocks, and the removal of soluble constituents, leaving a residual mass of weathered material containing ores. Which of the following minerals is/are formed in this manner?

a. Coal b. Gypsum c. Bauxite

  1. a, b and c

  2. b and c

  3. a and c

  4. a and b

  5. c only
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer. Bauxite is formed by the decomposition of surface rocks, and the removal of soluble constituents, leaving a residual mass of weathered material containing bauxite ore.

Multiple choice

Which of the following minerals is/are found as placer deposits?

a. Gold b. Tin c. Bromine

  1. a, b and c

  2. a and b

  3. b and c

  4. a and c

  5. c only
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Certain minerals may occur as alluvial deposits in sands of valley floors and the base of hills. These deposits are called ‘placer deposits’ and generally contain minerals that are not corroded by water. This is the correct answer as gold and tin are found as placer deposits.

Multiple choice

Which of the following statements is/are incorrect?

a. Khetri mines in Rajasthan and Singhbhum district of Jharkhand are leading producers of bauxite. b. A clay-like substance called alumina and later aluminium is obtained from bauxite. c. Bauxite deposits are formed by the decomposition of a wide variety of rocks rich in aluminium silicates.

  1. a only

  2. b only

  3. c only

  4. a and c

  5. b and c
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct answer as this statement is incorrect. India’s bauxite deposits are mainly found in the Amarkantak plateau, Maikal hills and the plateau region of Bilaspur-Katni.

Multiple choice

Which of the following statements is/are correct?

a. Hematite is the finest iron ore with a very high content of iron up to 70 percent. b. Hematite is very valuable in the electrical industry. c. Hematite ore is the most important industrial iron ore in terms of the quantity used.

  1. a and b

  2. b and c

  3. a and c

  4. a, b and c

  5. c only
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer as this is the correct statement. Hematite ore is the most important industrial iron ore in terms of the quantity used, but has a slightly lower iron content than magnetite (50-60 percent).

Multiple choice

Which of the following statements is/are correct?

a. Ferrous minerals account for about three-fourths of the total value of the production of metallic minerals. b. Ferrous minerals provide a strong base for the development of metallurgical industries in India. c. India imports substantial quantities of ferrous minerals from south America and Russia.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. a, b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as both these statements are correct.

Multiple choice

Jadugoda mines are famous for

  1. uranium deposits

  2. gold deposits

  3. mica

  4. iron ore
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Jadugoda mines are famous for uranium deposits. The Jaduguda mine (also spelt as Jadugoda or Jadugora) is a uranium mine in Jaduguda village in the Purbi Singhbhum district of the Indian state of Jharkhand. It commenced operations in 1967 and was the first uranium mine in India. 

Multiple choice

Cinnabar is an ore of

  1. lead

  2. mercury

  3. copper

  4. iron
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cinnaba or cinnabarite (red mercury(II) sulfide (HgS), native vermilion), is the common ore of mercury.