The cation exchange capacity of a mineral soil containing pre-dominately kaolinitic clay minerals generally ranges between
A. 3 - 15 meq per 100 gm soil
B. 15 - 40 meq per 100 gm soil
C. 80 - 100 meq per 100 gm soil
D. More than 100 meq per 100 gm soil
Answer: Option A
Solution(By Examveda Team)
The cation exchange capacity of a mineral soil containing pre-dominantly kaolinitic clay minerals generally ranges between 3 - 15 meq per 100 gm soil.Cation exchange capacity is the amount of a cation that can be exchanged by another cation on the surface of a clay mineral. It is expressed in cmol (+) per kg which is numerical to meq per 100g, where mol (+) represents moles of electrical charge.
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