Structures in Clay Minerals – MCQ
1. The clayey soil is formed by the chemical weathering of
View Answer
Clay Minerals
2. The kaolinite mineral is formed by the breakdown of
a) Feldspar
b) Chlorite
c) Amorphous
d) None of these
View Answer
a) Feldspar
3. Which of the following statement is true
a) Clay mineral is the colloidal size (<0.002 mm)
b) Clay mineral having a high specific surface
c) Clay minerals are of the flaky form
d) All of these
View Answer
d) All of these
4. What is the chemical composition of kaolinite?
a) Al4Si4 O10(OH)8 .4H2O
b) Al4Si8 O20(OH)8 .nH2O
c) Al4Si4O10(OH)8
d) Al2Si4O10(OH)2
View Answer
c) Al4Si4O10(OH)8
5. What is the chemical composition of Illite?
a) KAl4 AlSi7 O20(OH)4
b) Al4Si8 O20(OH)8 .nH2O
c) Al4Si4 O10(OH)8 .4H2O
d) Al2Si4O10(OH)2
View Answer
a) KAl4 AlSi7 O20(OH)4
6. Most of the clay minerals consist of a
a) Silica tetrahedron
b) Silica octahedron
c) Alumina tetrahedron
d) None of these
View Answer
a) Silica tetrahedron
7. The reaction by which silicon and aluminium are partially replaced by other elements is known as.
a) Isomorphous substitution
b) Isomorphic substitution
c) Isotropic Interchange
d) None
View Answer
a) Isomorphous substitution
8. A tetrahedron has __ numbers of faces.
a) 2
b) 4
c) 6
d) 8
View Answer
b) 4
9. In case of kaolinite, clay mineral particles. The thickness of each stack of silica and alumina is about.
a) 3 A0
b) 5 A0
c) 7 A0
d) 9 A0
View Answer
c) 7 A0
10. The hydrogen bond of kaolinite clay minerals is —– than the potassium bond of illite clay minerals.
a) Stronger
b) Weaker
View Answer
a) Stronger
Read Also:
Read Also:
Structural Clay Products – MCQ
Origin and Formation of Soils – MCQ
6 Purposes of Soil Exploration