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 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.

Multiple choice

Examples of non-metallic minerals are

  1. manganese, nickel, cobalt

  2. copper, lead, tin

  3. gold, silver, platinum

  4. coal, petroleum, natural gas

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

Examples of non-metallic minerals are coal, petroleum and natural gas.

Multiple choice

Which part of India is/are almost devoid of economic minerals?

  1. Peninsular rock system in Rajasthan

  2. The vast alluvial plains of North India

  3. Sedimentary rocks on the western and eastern flanks of the peninsula

  4. Black rock region

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

The vast alluvial plains of North India are devoid of economic minerals.

Multiple choice

Bauxite is an ore of

  1. iron

  2. aluminium

  3. copper

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

Bauxite, an aluminium ore, is the world's main source of aluminium.

Multiple choice

Hematite is an ore of

  1. iron

  2. aluminium

  3. copper

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

Hematite is the most important ore of iron.