Question

Release of iron from primary minerals and their dispersal as coatings on soil particles to impart brown to red colour to soil particles is called:
(A) Braunification
(B) Ferruginisation
(C) Rubification
(D) Laterisation

• A. (A), (B) and (D) only.
• B. (B), (C) and (D) only.
• C. (A), (B) and (C) only.
• D. (A), (C) and (D) only.

Hint:

Processes related to iron often result in distinct red, brown, or yellow hues in soils.

Answer 1

The Correct Option is C

Step 1: Rubification, ferruginisation and braunification all describe iron-oxide coatings that redden or brown soil particles.
Step 2: Laterisation instead involves intense leaching and residual oxide accumulation, a different process.
Step 3: So laterisation does not fit the description in the question.
Step 4: Correct answer, (A), (B) and (C) only.