Which one of the following clay mineral has the highest CEC?

A. Kaolinite
B. Montmorillonite
C. Vermiculite
D. Illite

Submitted by: Mir Mehrbiyar

Related Mcqs:

The kaolininte is a layer silicate clay mineral, it is 1:1 type of mineral with___________________?
A. 3-15 meq/100g CEC
B. 40 meq/100g CEC
C. 50 meq/100g CEC
D. None of the above
An intrazonal group of dark calcareous soils high in clay and having mainly montmorillonitic type clay are called as:________?
A. Regur
B. Ragour
C. Montmorillosol
D. Regosol

Submitted by: Shafiq Rehman
The little clay mineral is_____________________?
A. Non-expending
B. Expending
C. None or little expending
D. None of the above
Size of clay particle is___________________?
A. 0.02mm
B. 0.2mm
C. 0.002mm
D. 2mm
Clay and humus particles are referred to as colloids and are less than 0.002mm. Due to their small size, colloids have ________________ surface area which provides surface for adsorption, catalysis, precipitation and microbial colonization:
A. Extremely low
B. Extremely high
C. Very little
D. None of these

Submitted by: Shafiq Rehman
swelling clay soils, develop cracks due to greater proportion of swelling type clays:
A. Alfisols
B. Ultisols
C. Vertisols
D. None of the above

Submitted by: Shafiq Rehman
Depending on the percentage of sand, silt, clay, soils are divided into _______ textural classes:
A. 12
B. 13
C. 14
D. 09

Submitted by: Shafiq Rehman
Inorganic constituents vary in size from fine clay particles _________ mm to large _________ mm gravel and rock:
A. < 0.002 mm- >2 mm
B. 0.5 mm – 1.0 mm
C. 0.02 mm- 0.2 mm
D. None of the above

Submitted by: Shafiq Rehman
The clay fraction of the soil contains particles less than 0.002 mm. Particles <0.001 mm size:
A. Soil Silt
B. Soil colloids
C. Soil loam
D. Soil sand

Submitted by: Shafiq Rehman
The soil texture refers to the relative proportion of sand,__________ and clay:
A. Stone
B. Soil
C. Rock
D. Silt

Submitted by: Shafiq Rehman