Defence | BSF Head Constable (RO/RM)

General Science for BSF Head Constable (RO/RM)

BSF Head Constable (RO/RM) sets 60 General Science questions for 120 marks across 2 stages, so it is worth planning your preparation around the topics below.

60 questions120 marks3 topics

How to approach General Science in BSF Head Constable (RO/RM)

Physics, chemistry and biology at roughly the secondary-school level, tested as direct factual recall. NCERT-level fundamentals cover most of it, and the questions repeat across cycles, so past-paper topics are the sharpest guide to what to revise.

Weightage in the paper

How much General Science is worth in each BSF Head Constable (RO/RM) stage, from the official pattern.

Stage	Questions	Marks	Time	Share
Computer Based Test (CBT)	40	80	—	40%
Computer Based Test (CBT)	20	40	—	20%

General Science syllabus for BSF Head Constable (RO/RM)

Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.

Physics: mechanics, heat, light, electricity and magnetism at Class 12 level
Chemistry: physical, inorganic and organic chemistry fundamentals at Class 12 level
Everyday applications of science

Sample General Science questions with solutions

Written to the BSF Head Constable (RO/RM) pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.

Physics — kinematics · solved example

A car accelerates uniformly from rest to 20 m/s in 5 seconds. What is its acceleration?

4 m/s²Correct
5 m/s²
10 m/s²
2 m/s²

Solution

Acceleration = change in velocity / time = (20 − 0) / 5 = 4 m/s².

Physics — electricity · solved example

What is the SI unit of electric current?

Volt
AmpereCorrect
Ohm
Watt

Solution

Electric current is measured in amperes (A). Volt is potential difference, ohm is resistance and watt is power.

Chemistry — atomic structure · solved example

Which subatomic particle carries a negative charge?

Proton
Neutron
ElectronCorrect
Nucleus

Solution

Electrons carry a negative charge. Protons are positive, neutrons are neutral and the nucleus contains protons and neutrons.

Chemistry — acids and bases · solved example

What is the pH value of a neutral solution at 25 °C?

0
7Correct
14
1

Solution

A neutral solution has pH 7 at 25 °C. Values below 7 are acidic and above 7 are basic.

Sit General Science under a real clock

General Science shows up in every BSF Head Constable (RO/RM) mock test, in the same interface, with sectional locking and negative marking.

BSF Head Constable (RO/RM): 16-question practice mock
16 questions | 24 min
Start

Frequently asked questions

How many General Science questions are asked in BSF Head Constable (RO/RM)?

BSF Head Constable (RO/RM) 2025 cycle sets 60 General Science questions for 120 marks, split across 40 in the Computer Based Test (CBT) and 20 in the Computer Based Test (CBT).

Is there negative marking for General Science in BSF Head Constable (RO/RM)?

Yes. BSF Head Constable (RO/RM) deducts one fourth of a mark for each wrong answer, General Science included, so unsure guesses cost you. 0.25 marks are deducted for each wrong answer; each question carries 2 marks. Unanswered questions carry no penalty.

Which General Science topics matter most for BSF Head Constable (RO/RM)?

The BSF Head Constable (RO/RM) syllabus lists Physics: mechanics, heat, light, electricity and magnetism at Class 12 level, Chemistry: physical, inorganic and organic chemistry fundamentals at Class 12 level, Everyday applications of science. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.

How can I practise General Science for BSF Head Constable (RO/RM) free?

Every General Science question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the BSF Head Constable (RO/RM) mock tests to sit it under a real clock with negative marking.