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

Directions: For the Assertion (A) and Reason (R) given below, choose the correct alternative.

Assertion (A): Bauxite is the chief ore of aluminium. Reason (R): Amarkantak plateau is a main area of bauxite deposits in India.

  1. A is true, R is false

  2. A is false, R is true

  3. Both A and R are true, but R is not the correct explanation of A.

  4. Both A and R are true and R is the correct explanation of A.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both A and R are true, but R is not the correct explanation of A.

Bauxite is the principal ore of aluminum. The first step in producing aluminum is to crush the bauxite and purify it using the Bayer Process. In the Bayer Process, the bauxite is washed in a hot solution of sodium hydroxide, which filters aluminum from the bauxite.

R tells the location, but not the reason for Bauxite being the main ore of aluminium.

Multiple choice

Recently, some minerals found in India are evaluated as "most critical" for India's manufacturing sector by 2030. Which of the following is/are these scarce resources?

  1. Limestone

  2. Graphite

  3. Rare earths

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The study conducted by Department of Science and Technology identifies 12 minerals out of 49 that are evaluated as "most critical" for India's manufacturing sector by 2030. These are rare earths, beryllium, chromium, germanium, niobium, rhenium, strontium, zirconium, tantalum, limestone and graphite. Hence, the correct option is 4.

Multiple choice

In reference to Monazite sands, following minerals is/are present:

1.         Uranium 2.         Thorium 3.         Cerium 4.         Lanthanum

Which of the following is/are correct?

  1. Only 1

  2. Only 2

  3. Only 3

  4. 1, 2, 3 and 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Monazite is a reddish-brown phosphate mineral containing rare earth metals. It occurs usually in small isolated crystals. It is enriched in lanthanum and cerium. Monazite is radioactive due to the presence of uranium. 

Multiple choice

Which gemstone contains only one element?

  1. Diamond

  2. Ruby

  3. Jade

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

A diamond is composed entirely of carbon atoms arranged in a crystal lattice structure, making it a gemstone consisting of only one element.

Multiple choice

Lodestone, cobalt, and iron are all examples of what?

  1. steel

  2. natural liquids

  3. natural gases

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

Lodestone (magnetite), cobalt, and iron are materials that exhibit magnetic properties naturally. They are classified as natural magnets.

Multiple choice geography manufacturing industries in india - ii : mineral-based electronic, heavy and petrochemical industries in india indian industries industries in india

Which of the following is a mineral based-industry?

  1. Sugar

  2. Tea

  3. Coffee

  4. Petro-chemicals
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Petroleum is a mineral which is naturally occurring and consists of organic compounds viz. hydrocarbons. Chemical products derived from petroleum are called petrochemicals. The petrochemical industry is a mineral based industry which involves the production of petrochemicals using petroleum as major raw material. Major petrochemical classes are aromatics (such as benzene, xylene isomers, and toluene) and olefins (such as propylene and ethylene).

Multiple choice geography manufacturing industries in india - ii : mineral-based electronic, heavy and petrochemical industries in india indian industries industries in india

Which of the following is a mineral-based industry?

  1. Sugar

  2. Tea

  3. Coffee

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

The mineral based industries are called petro-chemical industries. These are extracted from earth and are formed by fossil decomposition and are hence called fossil fuels. These fuels form major source of energy.