Q187
CEC of vermiculite is
A.
3 - 15 Cmolc (P+)/kg
B.
20 - 25 Cmolc (P+)/kg
C.
60 - 100 Cmolc (P+)/kg
D.
100 - 200 Cmolc (P+)/kg
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Vermiculite is a hydrous phyllosilicate material that undergoes significant expansion when heated.Vermiculite is a 2 : 1 neutral clay, which means it has two tetrahedral sheets for every octahedral sheet. Vermiculite has a high cation-exchange capacity (CEC) at 100 - 200 Cmolc (P+)/Kg.