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Which of the following ion is not found in acidic soils?

(a) Ca

(b) Al

(c) Fe

(d) Cu

This question was addressed to me by my school teacher while I was bunking the class.

Origin of the question is Management of Other Problem Soils in chapter Management and Remediation of Problem Soil of Environmental Biotechnology

1 Answer

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by (736k points)
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Best answer
The correct choice is (a) Ca

Easiest explanation: Acidic soils are deficient in Ca ions but Al, Fe, Cu are found in excessive amounts in these soils as the acidic soils have a pH range of 1-4 and in the high pH range various metals such as Copper, Aluminum, iron are more metals are found but calcium ion being less available in this pH range is deficient in these soils.

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