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

Bauxite is an ore of

  1. aluminium

  2. boron

  3. lead

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

Bauxite is the primary ore of aluminium, containing aluminium minerals like gibbsite, boehmite, and diaspore.

Multiple choice

Bauxite is used in

  1. aluminium industry

  2. steel industry

  3. ghee industry

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

Bauxite Used for Aluminum Production. Bauxite is the principal ore of aluminum.

Multiple choice

Which of the following is a pair of copper ores?

  1. Hematite and siderite

  2. Azurite and malachite

  3. Manganite and pyrolusite

  4. Limonite and pyrolusite

  5. Malachite and siderite
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Azurite, Cu3(CO3)2(OH)2: Copper ore Malachite, Cu2CO3(OH)2: Copper ore

Multiple choice

Silicon is abundantly present in

  1. coal

  2. sand

  3. limestone

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

Silicon is the second most abundant element in the Earth's crust, primarily found in the form of silica (silicon dioxide) in sand and rocks.

Multiple choice

Cinnabar is an ore of

  1. copper

  2. iron

  3. mercury

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

Cinnabar is the bright red form of mercury(II) sulfide and is the main ore of mercury.

Multiple choice

Dolomite is an ore of

  1. Mg

  2. Zn

  3. Fe

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

Dolomite is a carbonate mineral composed of calcium magnesium carbonate, CaMg(CO3)2, making it an important ore for magnesium.

Multiple choice

Match the Group - I (Minerals/ores) with Group - II (Chemical formula) accordingly.

 
Group - I
Group - II
A. crocoisite 1. PbCrO4
B. felspar 2. PbCO3
C. cerussite 3. KAlSi3O8
D. malachite 4. Cu(OH)2.CuCO3

  1. A - 1, B - 3, C - 2, D - 4

  2. A - 2, B - 1, C - 3, D - 4

  3. A - 2, B - 1, C - 4, D - 3

  4. A - 1, B - 2, C - 3, D - 4

  5. A - 4, B - 3, C - 2, D - 1
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Crocoisite (PbCrO4) is the ore of lead. Felspar (KAlSi3O8) is the mineral of potassium and Aluminium. Cerussite (PbCO3) is the carbonate ore of lead. Malachite (Cu(OH)2.CuCO3) is the carbonate ore of copper. Hence, this is the  correct representation of the codes A - 1, B - 3, C - 2, D - 4.

Multiple choice

Match the Group - I (ores) with Group - II (ore types).

 
Group - I
Group - II
P. Galena 1. sulphide
Q. Dolomite 2. silicate
R. Mica 3. oxide
S. Zincite 4. carbonate
5. hydroxide

  1. P - 1, Q - 4, R - 2, S - 3

  2. P - 3, Q - 4, R - 2, S - 5

  3. P - 3, Q - 4, R - 1, S - 2

  4. P - 1, Q - 2, R - 5, S - 3

  5. P - 4, Q - 3, R - 2, S - 1
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Galena (PbS) is the sulphide ore of Pb. Dolomite (CaCO3.MgCO3) is the carbonate ore of Mg. Mica (K2O.3Al2O3.6SiO2.2H2O) is the silicate ore of Al. Zincite (ZnO) is the oxide ore of Zn. Hence, the correct answer using the codes is P - 1, Q - 4, R - 2, S - 3.