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Topic Reactivity Series
Asked 3 times across 2 UPSC exams over 1 years (2022–2023), peaking in 2023.
Key insights
- Most tested in NDA — 2 of 3 PYQs
- Most asked in 2023
- Recurs across 2 years (2022–2023)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
NDA 2022 → CISF 2023
How the concept evolved
Rising — more than half its appearances (3 of 3) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2023
Which one of the following is the correct arrangement of metals in the decreasing order of their reactivity?
- A Iron, Sodium, Silver, Copper
- B Silver, Copper, Iron, Sodium
- C Sodium, Copper, Silver, Iron
- D Sodium, Iron, Copper, Silver ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
CISF2023
Which one among the following is the most reactive metal?
- A Na
- B K ✓
- C Ca
- D Mg
✓ Correct answer: (B)
Science & Technology › Physics & Chemistry
NDA2022
Which one of the following is the correct reactivity series with water?
- A Zinc > Iron > Lead > Copper ✓
- B Copper > Lead > Zinc > Iron
- C Copper > Zinc > Iron > Lead
- D Zinc > Copper > Iron > Lead
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
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