List of top Soil Science Questions on Soil Structure and Clay Mineralogy asked in ICAR AIEEA (PG)

K fixing power of clay minerals follows the order:
(A) Illite
(B) Montmorillonite
(C) Kaolinite
(D) Vermiculite

Given below are two statements:
Statement (I): 2:1 layer silicates consist of two tetrahedral sheets bound to either side of an octahedral sheet
Statement (II): Two tetrahedral sheets of 2:1 layer silicates is bound to one side of an octahedral sheet in 2:1 layer silicates
The most common 1:1 type of clay mineral in soil is--
Assertion (A): Cations adsorbed on soil colloids determine aggregate formation.
Reason (R): Cations form electropositive links between electronegative soil particles.
Arrange the following in decreasing order of Basal Spacing:
(A) Kaolinite
(B) Montmorillonite
(C) Illite
(D) Vermiculite
Choose the correct answer from the options given below:
Arrange the following in decreasing order according to the number of linkages among silicon tetrahedra of soil particles:
(A) Nesosilicates
(B) Phyllosilicates
(C) Tectosilicates
(D) Inosilicates
Choose the correct answer from the options given below:

Match List-I with List-II:

Prismatic soil structure is a distinct feature in
The dominant clay mineral present in Inceptisol is