Which of the following tends to displace cations from soil exchange sites as pH decreases?
A)Ca ²⁺
B)NH₄⁺
C)H⁺
D)SO₄²⁻

Question

Quizplus · Accepted Answer

As pH decreases, the concentration of H+ ions increases, leading to an increase in soil acidity. This increase in acidity can displace cations, such as Ca2+ and NH4+. However, the H+ ion is a stronger acid and can displace cations more effectively. Therefore, H+ is the best choice for displacing cations from soil exchange sites as pH decreases. SO42- is an anion and does not displace cations from soil exchange sites.

Which of the Following Tends to Displace Cations from Soil