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 chemistry production of metals extraction of aluminium metallurgy of aluminium extraction of metals by electrolysis

Identity the principle behind the concentration of bauxite ore.

  1. Magnetic property of impurities in white bauxite
  2. Low specific gravity of $Al _{2}O _{3}$
  3. Amphoteric nature of $Al _{2}O _{3}$
  4. High melting point of $Al _{2}O _{3}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

$Al _2O _3 + 2NaOH + 3H _2O \rightarrow 2Na[Al(OH) _4]$
$Al _2O _3 + 6HCl \rightarrow 2AlCl _3 + 3H _2O$

Hence, in both the ways, Al can be concentrated, which owes to its amphoteric nature. 

Multiple choice

Which one is a category for the other three?

  1. diamonds

  2. gold

  3. rubies

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

Diamonds, gold, and rubies are all types of valuable items that can be classified as treasures. Treasures is the category that encompasses the others.

Multiple choice water and mineral resources in tamil nadu tamil nadu agriculture human geography in tamil nadu geography economics

Iron ore, copper, bauxite, chromite and pyrite are the major _________ of Tamil Nadu.

  1. Non-metalic minerals

  2. Metalic minerals

  3. Mineral fuels

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

Iron ore, copper, bauxite, chromite and pyrite are the major metallic minerals of Tamil Nadu.Following are the places they are found:

  1. Iron ore: Salem, Namakkal and Thiruvannamalai
  2. Copper: Salem, Nilgiris, Coimbatore, Madurai
  3. Bauxite: Salem, Nilgiris, Coimbatore, Vellore, Dhamapuri, Madurai and Villupuram
  4. Pyrite: Villupuram

Multiple choice water and mineral resources in tamil nadu tamil nadu agriculture human geography in tamil nadu geography economics

Limestone, mica, magnesite, steatite and salt are the __________ of Tamil Nadu.

  1. Metallic minerals

  2. Non-metallic

  3. Mineral fuels

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

Limestone, mica, magnesite, steatite and salt are the non-metallic minerals of Tamil Nadu. Following are the places they are found

  1. Limestone: Virudhunagar, Thoothukudi, Tirunelveli, Tiruchirappalli, Kanchipuram and Salem.
  2. Mica: Tiruchirappalli, Coimbatore and Ramanathapuram.
  3. Magnesite: Salem, Namakkal, Coimbatore and Erode.
  4. Steatite: Vellore, Cuddalore, Coimbatore, Salem, Tiruchirappalli.
  5. Salt: Chennai, Thoothukudi, Cuddalore, Nagapattinam and Thiruvarur.

Multiple choice water and mineral resources in tamil nadu tamil nadu agriculture human geography in tamil nadu geography economics

Lignite, vermiculite, Garnet, Zircon, Graphite, Ilmenite, Rutile, Monazite and Magnesite are the _____ of Tamil Nadu.

  1. Major mineral resources

  2. Major names of rivers

  3. Major names of trees

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The listed substances (Lignite, Garnet, Zircon, etc.) are all naturally occurring minerals found in Tamil Nadu, making them major mineral resources.

Multiple choice geography mineral and energy resources - ii mineral resources - coal - introduction mining mineral fuels

Which one of the following mineral is used for the production of Thermal Power ?

  1. Coal

  2. Uranium

  3. Thorium

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

Coal has many important uses worldwide. The most significant uses of coal are in electricity generation, steel production, cement manufacturing and as a liquid fuel. Different types of coal have different uses.

Multiple choice geography mineral and energy resources - ii mineral resources - coal - introduction mining mineral fuels

Jharia is a major producer of which mineral?

  1. Mica

  2. Bauxite

  3. Coal

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

Jharia is famous for its rich coal resources, used to make coke. The coal field lies in the Damodar River Valley and covers about 110 square miles (280 square km) and produces bituminous coal suitable for coke. Most of India's coal comes from Jharia. Jharia coal mines are India's most important storehouse coke coal used in blast furnaces, it consists of 23 large underground and nine large open cast mines. 

Multiple choice geography mineral and energy resources - ii mineral resources - coal - introduction mining mineral fuels

Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?

  1. coal

  2. bauxite

  3. gold

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

Coal- formed of organic material deposited one layer above the other. Across millions of years, due to physical and chemical changes, oxygen was forced out and was left with carbon-rich deposits.

Bauxite- Formed mainly by weathering of aluminous rocks.

Multiple choice geography mineral and energy resources - ii mineral resources - coal - introduction mining mineral fuels

What is known as Black Diamond?

  1. Gold

  2. Silver

  3. Coal

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

Caol is known as "Black Diamond". This is a fossil fuel which was formed millions of years ago when giant fern and swamps got buried under the layers of the earth. Coal is therefore referred to as "Buried sunshine". Electricity from coal is called "Thermal Power".