🔬 Science & Technology

85 official UPSC Prelims questions on Science & Technology, drawn from the 2010–2025 papers, each with the verified answer and a detailed explanation. The set spans 18 topics — most-asked: Space Technology (18), Biotechnology (16), IT & Cyber (12), Defence Technology (7), Information Technology (5), Nuclear Technology (4).

Attempt in any order — progress saves automatically on this device. Revise the theory in the Science & Technology chapters before or after a round.