Question

explain the principle used to explain the CeC with one example each

Answer 1

Answer:

Cation-exchange capacity is defined as the amount of positive charge that can be exchanged per mass of soil, usually measured in cmolc/kg. Some texts use the older, equivalent units me/100g or meq/100g. CEC is measured in moles of electric charge.

example : Al3+ replaced by Mg2+