CEC of vermiculite is

A. 3 - 15 Cmol_c (P⁺)/kg

B. 20 - 25 Cmol_c (P⁺)/kg

C. 60 - 100 Cmol_c (P⁺)/kg

D. 100 - 200 Cmol_c (P⁺)/kg

Answer: Option D

Solution(By Examveda Team)

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 Cmol_c (P⁺)/Kg.