BPSC Prelims · Topic-wise PYQs
Science & Tech and Basic Science BPSC Prelims PYQs
597 questions on Science & Tech and Basic Science asked in BPSC Prelims, sorted into 8 sub-topics. In the app you practise each sub-topic as a timed test (longer sub-topics in sets of about 25 questions) with the BPSC marking (+1 / −0.33 per question), followed by a full analysis.
About Science & Tech and Basic Science in BPSC Prelims
Science & Tech and Basic Science is the largest of the 12 topics in the BPSC bank: 597 of its 2,570 topic-wise PYQs (23.2%). The biggest sub-topics are Chemistry (191), Biology (165), Physics (161).
Sub-topics and question counts
| Sub-topic | PYQs | Latest year |
|---|---|---|
| Chemistry | 191 | 2025 |
| Biology | 165 | 2025 |
| Physics | 161 | 2025 |
| Diseases | 36 | 2025 |
| Space | 19 | 2025 |
| Defence, Inventions & Research Labs | 16 | 2025 |
| Electronics & IT | 7 | 2025 |
| Biotech | 2 | 2023 |
| Total | 597 | 2025 |
Sub-topics with fewer than 20 questions are practised inside the Science & Tech and Basic Science tests in the app and have no page of their own.
Science & Tech and Basic Science PYQs by the latest year asked
Each question is counted once, under the latest year it was asked in the exam.
| Period | PYQs | Share |
|---|---|---|
| 2021 and later | 261 | |
| 2016–2020 | 153 | |
| 2011–2015 | 34 | |
| 2001–2010 | 32 | |
| Before 2001 | 117 |
Sample Science & Tech and Basic Science questions from the free tests
Question text only. The options, the answer and the explanation open in the free test (free sign-in with your mobile number).
Asked in 2025
Which compound is used for increase of octane rating?
Attempt it in the free 71st CCE Prelims (2025)Asked in 2025
Which metal compound is used for treatment of carcinoma?
Attempt it in the free 71st CCE Prelims (2025)Asked in 2025
Which Compound is known as night glowing pigment from below?
Attempt it in the free 71st CCE Prelims (2025)
Questions students ask
How many Science & Tech and Basic Science questions has BPSC Prelims asked?
Sovereign IAS has 597 Science & Tech and Basic Science previous-year questions from BPSC Prelims in 8 sub-topics, the latest from 2025.
Which Science & Tech and Basic Science sub-topics come up most often?
Chemistry (191 questions), Biology (165 questions), Physics (161 questions).
Can I practise BPSC Science & Tech and Basic Science PYQs for free?
Partly. 32 of these 597 questions are in the free BPSC tests (the latest papers and two topic-wise tests, free with a sign-in); the full set is part of the Destiny Pass.