General Awareness ยท 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

The ore of calcium is

  1. bauxite

  2. dolomite

  3. pitchblende

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

Limestone is primarily composed of calcium carbonate (CaCO3), making it a major ore or source of calcium. Bauxite is an ore of aluminium, pitchblende is an ore of uranium, and dolomite contains both calcium and magnesium.

Multiple choice

The ore of uranium is

  1. bauxite

  2. dolomite

  3. pitchblende

  4. limestone
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pitchblende is a radioactive, uranium-rich mineral ore. Bauxite is for aluminium, and limestone is for calcium.

Multiple choice

The common ore of aluminium is ______.

  1. haematite

  2. bauxite

  3. calcite

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

Bauxite is the primary ore of aluminium. Haematite is an ore of iron, while calcite is a carbonate mineral.

Multiple choice

Which of the following is the ore of iron?

  1. Bauxite

  2. Galena

  3. Monazite

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

Hematite is a common iron oxide mineral and one of the most important ores of iron. Bauxite is an ore of aluminum, and Galena is an ore of lead.

Multiple choice

Which metal is extracted from the chief ore bauxite?

  1. Iron

  2. Zinc

  3. Manganese

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

Bauxite is the primary ore from which aluminium is extracted through the Bayer process and subsequent electrolysis. It is a sedimentary rock with high aluminium content.

Multiple choice

Baku is famous for

  1. petroleum

  2. iron smelting

  3. coal

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

Baku, the capital of Azerbaijan, is historically and economically famous for its vast petroleum and natural gas reserves.

Multiple choice

Which of the following statements is/are correct?

a. Aluminium smelting is the second most important metallurgical industry in India. b. Bauxite, the raw material used in the smelters is a very bulky, dark reddish coloured rock. c. Aluminium is being used as a substitute of steel, copper, zinc and lead in a number of industries.

  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
E Correct answer
Explanation

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