How to Score 28+ in General Science (30 Questions): 72nd BPSC Prelims Blueprint
A bulletproof roadmap to conquer the 30 General Science questions in 72nd BPSC Prelims. Subject weightage (Biology: 15Q, Physics: 8Q, Chemistry: 7Q), high-frequency topics, NCERT references, and formulas.
1. Why General Science is the Highest-ROI Section in BPSC
General Science carries exactly 30 questions (20% of the entire paper) in BPSC Prelims. Unlike Current Affairs which changes every year, scientific concepts are permanent.
Candidates with a disciplined NCERT foundation routinely score 26 to 29 marks, creating the decisive cushion required to clear the preliminary cutoff.
| Sub-Discipline | Typical Question Share | Top 3 High-Frequency Themes |
|---|---|---|
| Biology (Zoology & Botany) | 14 – 16 Questions | Human Diseases & Vitamins, Endocrine System, Photosynthesis & Plant Hormones |
| Physics (Applied Concepts) | 7 – 9 Questions | Optics (Refraction, Lenses, Total Internal Reflection), Units & Dimensions, Sound Waves |
| Chemistry (Everyday Materials) | 6 – 8 Questions | Acids, Bases & pH Scale, Common Chemical Names & Formulas, Metals & Alloys |
2. Top 10 Repeated Biology Themes in BPSC
Review Vitamin deficiencies (Vitamin B12, Vitamin D, Vitamin K), disease vectors (Malaria, Dengue, Kala-Azar - endemic to Bihar), endocrine glands (Thyroid, Pancreas insulin), and blood groups (Universal donor O-, recipient AB+).