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 commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Magnetite is a good quality ore of _______.

  1. Copper

  2. Iron

  3. Bauxite

  4. Sodium salt

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

Magnetite is a rock mineral and one of the main ores of iron. It is one of the oxides of iron, and is ferromagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. It is the most magnetic of all the naturally-occurring minerals on Earth.

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Coal and petroleum are the examples of ________.

  1. Metallic mineral

  2. Precious mineral

  3. Non-metallic mineral

  4. Energy mineral

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

Energy minerals are used to produce electricity, fuel for transportation, heating for homes and offices and in the manufacture of plastics. Energy minerals include Coal, Oil, Natural gas, Petroleum, and Uranium.

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Which of the following is not the category of mineral?

  1. Metallic mineral

  2. Precious mineral

  3. Non-metallic mineral

  4. Abrasive mineral

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

Metallic, non-metallic, and abrasive are standard classifications for minerals. 'Precious' is a marketing or value-based category, not a scientific or geological classification of minerals.

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

In placer deposits, you are likely to find which of the following minerals?

  1. Mica

  2. Gold

  3. Coal

  4. Bauxite
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, which are not corroded by water. Gold, silver, tin and platinum are most important among such minerals.

Multiple choice commercial applications treasure under the ground conservation of mineral resources distribution and conservation of mineral resources indian mineral and power resources

Which mine is known as 100 percent export unit?

  1. Chitradurga

  2. Tamkur

  3. Kudremukh

  4. Bellary
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The Kudremukh mines located in the Western Ghats of Karnataka are a 100 per cent export unit. Kudremukh deposits are known to be one of the largest in the world. The ore is transported as slurry through a pipeline to a port near Mangalore.
Multiple choice

What factor is used to classify most minerals?

  1. physical composition

  2. native elements

  3. chemical composition

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

Minerals are primarily classified based on their chemical composition, specifically the anions or anionic groups they contain.

Multiple choice

The main mineral constituents of the continental mass are _____.

  1. Silica and Alumina(Sial)

  2. Silica and Magnesium(Sima)

  3. Silicon and Ferrous(Sife)

  4. Nickel and Iron(Nife)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The continental crust is primarily composed of silica and alumina, which is abbreviated as 'sial' (Si for silica and Al for alumina). The oceanic crust, on the other hand, is called 'sima' because it consists mainly of silica and magnesium.

Multiple choice

Which property is the least reliable for mineral identification?

  1. Luster

  2. Color

  3. Streak

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

Color is the least reliable property because many minerals come in a variety of colors due to minor impurities, and different minerals can share the same color. Properties like hardness, streak, and luster are much more consistent and reliable for identification.