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Topic

Displacement reaction

Asked 2 times in NDA, peaking in 2023.
2
PYQs
1
Exams
1
Years active
2023–2023
Span
2023
Peak
2/2
Answers
📅 Full chronological timeline →

Key insights

  • Most tested in NDA — 2 of 2 PYQs
  • Most asked in 2023
  • Recurs across 1 years (2023–2023)

Across exams

NDA · 2

How the concept evolved

223
Rising — more than half its appearances (2 of 2) are since 2016.

Related concepts

Ideas UPSC tests alongside this one — keep exploring.
Chemical reactions ×2Redox reaction ×1Decomposition reaction ×1

Sample questions

You've seen the pattern — here are a few of the actual PYQs.
NDA2023
Consider the following reaction : Fe2O3(s) + 2Al(s) → 2Fe(s) + Al2O3(s) Which of the following statements about the given reaction is NOT correct ?
  1. A It is an example of displacement reaction
  2. B It is highly endothermic reaction ✓
  3. C Fe2O3 acts as oxidizing agent
  4. D This reaction is applicable to joining of railway tracks
✓ Correct answer: (B)
Science & Technology › Physics & Chemistry
NDA2023

Match List I with List II and select the correct answer using the code given below the Lists

List I (Chemical process)List II (Reaction)
A. Electrolysis of water1. Double displacement reaction
B. Burning of coal2. Combination reaction
C. Iron nail immersed in copper sulphate solution3. Decomposition reaction
D. Addition of barium chloride solution to aluminium sulphate solution4. Displacement reaction

Codes:

  1. A A-3 B-4 C-2 D-1
  2. B A-4 B-2 C-1 D-3
  3. C A-3 B-2 C-4 D-1 ✓
  4. D A-4 B-1 C-2 D-3
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry

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