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Topic Exfoliation
Asked 2 times across 2 UPSC exams over 10 years (2015–2025), peaking in 2015.
Key insights
- Most tested in CDS — 1 of 2 PYQs
- Most asked in 2015
- Recurs across 2 years (2015–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CDS 2015 → GEO 2025
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2025
Exfoliation in rocks can occur due to forces induced by
- carbonation
- oxidation
- temperature change
Select the correct answer using the code given below.
- A 1 and 2
- B 2 only
- C 3 only ✓
- D 1 and 3
✓ Correct answer: (C)
Geography › Geomorphology
CDS2015
Which one among the following processes is not part of a chemical weathering ?
- A Hydration
- B Exfoliation ✓
- C Oxidation
- D Solution
✓ Correct answer: (B)
Geography › Geomorphology
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