Question:medium

Given below are two statements: Assertion (A): In soils of humid and sub-humid regions, the colloidal complexes are dominated by aluminium, hydrogen and calcium ions. Reason (R): Aluminium, hydrogen and calcium ions encourage dispersion and consequently they help to form aggregates.

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Calcium generally improves soil aggregation, while sodium causes dispersion.
Updated On: May 18, 2026
  • Both A and R are correct and R is the correct explanation of A
  • Both A and R are correct but R is not the correct explanation of A
  • A is correct but R is not correct
  • A is not correct but R is correct
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The Correct Option is C

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