Topic Alloys
Asked 13 times across 5 UPSC exams over 43 years (1980–2023), peaking in 2022.
Key insights
- Most tested in CSE — 4 of 13 PYQs
- Most asked in 2022
- Recurs across 8 years (1980–2023)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1980 → CAPF 2017 → NDA 2021 → GEO 2021 → CDS 2021
How the concept evolved
Rising — more than half its appearances (9 of 13) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
NDA2023
Which one of the following alloys contains a non-metal as one of its constituent ?
- A Brass
- B Bronze
- C Amalgam
- D Steel ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
NDA2023
Which one of the following metal is NOT an essential component in stainless steel ?
- A Iron
- B Nickel
- C Chromium
- D Tin ✓
✓ Correct answer: (D)
Science & Technology › Physics & Chemistry
CAPF2022
White gold is an alloy of
- A gold, nickel and palladium ✓
- B gold, cobalt and palladium
- C gold, titanium and platinum
- D gold, magnesium and palladium
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
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