General Awareness · Geography

Minerals and Ores

1,185 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. 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.

Multiple choice

Which of the following minerals does not contain aluminium?

  1. Corundum

  2. Gibbsite

  3. Feldspar

  4. Magnetite
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Magnetite is a natural magnet, hence the name, giving it a very nice distinguishing characteristic.  Magnetite is a member of the spinel group which has the standard formula A(B)2O4. The A and B represent usually different metal ions that occupy specific sites in the crystal structure. In the case of magnetite, Fe3O4, the A metal is Fe +2 and the B metal is Fe +3; two different metal ions in two specific sites. This arrangement causes a transfer of electrons between the different irons in a structured path or vector. This electric vector generates the magnetic field.It is an ore of iron & it does not contain aluminium.

Multiple choice

Which ore(s) contain(s) both iron and copper?

  1. Cuprite and chalcocetis

  2. Cuprite and chalocopyrite

  3. Chalocopyrite

  4. Malachite

  5. Malachite and chalocopyrite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This option is correct, because this ore, CuFeS2 has iron and copper both.

Multiple choice

Coal and petroleum are the examples of

  1. metallic minerals

  2. precious minerals

  3. non-metallic minerals

  4. energy minerals

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Coal and petroleum are the examples of energy minerals.