Blog

General Science is one of the most scoring sections in the RRB Group D examination. Many aspirants either ignore it or prepare it casually, thinking it is unpredictable. In reality, General Science follows a clear syllabus pattern, and with structured preparation, it can significantly boost your overall score.

This section mainly tests basic concepts of Physics, Chemistry, and Biology up to Class 10 level, with questions framed in a simple but conceptual manner. In this detailed guide, we will cover complete subject-wise preparation strategy, important topics, short notes, smart study techniques, and common mistakes to avoid—all specifically tailored for RRB Group D aspirants.

Why General Science Is Important in RRB Group D

General Science carries 25 questions in the RRB Group D CBT exam. Each question is worth 1 mark, and there is negative marking of 1/3 mark for every wrong answer. Since the syllabus is limited and repetitive, this section provides a great opportunity to score 18–22 marks or more with proper preparation.

Key advantages of preparing General Science seriously:

• Questions are mostly direct and factual

• Syllabus is fixed and predictable

• No lengthy calculations required

• High accuracy achievable with revision

RRB Group D General Science Syllabus Overview

The General Science section is divided into three major parts:

1. Physics

2. Chemistry

3. Biology (Life Science)

The level of questions is generally from Class 6 to Class 10 NCERT, with emphasis on daily-life applications.

Physics Preparation for RRB Group D

Physics questions in RRB Group D are mostly concept-based, focusing on real-life phenomena rather than numerical problems. The questions are straightforward if the basics are clear.

Important Physics Topics

1. Motion and Laws of Motion

• Types of motion (linear, circular, periodic)

• Speed, velocity, acceleration

• Newton’s laws of motion

• Inertia and momentum

• Action and reaction

2. Work, Energy, and Power

• Work and its units

• Kinetic and potential energy

• Law of conservation of energy

• Power and its types

• Commercial unit of energy (kWh)

3. Gravitation

• Universal law of gravitation

• Acceleration due to gravity

• Weight vs mass

• Free fall

• Thrust and pressure

4. Heat and Thermodynamics

• Temperature and heat

• Modes of heat transfer (conduction, convection, radiation)

• Thermal expansion

• Calorimetry

• Everyday applications of heat

5. Light and Optics

• Reflection and refraction

• Laws of reflection

• Plane and spherical mirrors

• Lenses and magnification

• Human eye and defects of vision

6. Electricity and Magnetism

• Electric current and circuit

• Conductors and insulators

• Ohm’s law (conceptual)

• Magnetic effects of electric current

• Domestic electric appliances and safety

7. Sound

• Nature of sound

• Echo and reverberation

• Audible and inaudible sound

• Noise vs music

Physics Preparation Tips

• Focus on definitions and laws

• Learn SI units and symbols

• Understand daily-life examples

• Avoid heavy numericals; keep formulas simple

• Revise diagrams conceptually (no drawing required)

Chemistry Preparation for RRB Group D

Chemistry questions are direct and factual, often testing your knowledge of substances, reactions, and everyday chemicals.

Important Chemistry Topics

1. Matter and Its Nature

• States of matter

• Physical and chemical changes

• Elements, compounds, and mixtures

• Diffusion and evaporation

2. Atomic Structure

• Atom and molecule

• Atomic number and mass number

• Protons, neutrons, electrons

• Valency

3. Chemical Reactions

• Types of reactions (combination, decomposition, displacement)

• Oxidation and reduction

• Corrosion and rusting

• Balanced chemical equations (conceptual)

4. Acids, Bases, and Salts

• Properties of acids and bases

• Common acids (HCl, H₂SO₄)

• Common bases (NaOH, KOH)

• Salts and their uses

• pH scale and indicators

5. Metals and Non-Metals

• Properties and uses

• Reactivity series

• Corrosion prevention

• Alloys and their applications

6. Carbon and Its Compounds

• Organic vs inorganic compounds

• Hydrocarbons

• Fuels and their types

• Alcohols and acids (basic awareness)

7. Everyday Chemistry

• Soaps and detergents

• Fertilizers and pesticides

• Medicines and antiseptics

• Food adulteration

Chemistry Preparation Tips

• Memorize important chemical names and formulas

• Learn uses of common substances

• Focus on NCERT examples

• Practice previous year questions

• Avoid unnecessary chemical equations

Biology Preparation for RRB Group D

Biology is often considered the most scoring part of General Science. Questions are theory-based, and repeated topics appear frequently.

Important Biology Topics

1. Cell – Structure and Function

• Cell theory

• Plant cell and animal cell

• Cell organelles and their functions

• Tissues

2. Human Body Systems

• Digestive system

• Respiratory system

• Circulatory system

• Nervous system

• Excretory system

3. Nutrition and Health

• Balanced diet

• Deficiency diseases (Vitamin A, B, C, D)

• Communicable and non-communicable diseases

• Vaccination and immunity

4. Plant Physiology

• Photosynthesis

• Respiration in plants

• Transpiration

• Functions of roots, stems, and leaves

5. Reproduction

• Human reproduction (basic)

• Reproductive health

• Asexual and sexual reproduction

6. Environment and Ecology

• Ecosystem

• Food chain and food web

• Natural resources

• Pollution and conservation

7. Genetics and Evolution (Basic)

• Heredity

• Traits and variation

• Adaptation

• Evolution (basic idea)

Biology Preparation Tips

• Learn definitions line by line

• Focus on one-word answers

• Revise diagrams conceptually

• Make short notes for diseases and nutrients

• Biology requires regular revision

Smart Study Plan for General Science

Step 1: NCERT First

Start with Class 6–10 NCERT books for Physics, Chemistry, and Biology. Almost 80–90% of questions are based on NCERT concepts.

Step 2: Topic-wise Notes

Prepare short notes for each topic:

• Definitions

• Key points

• Examples

• Important facts

Step 3: Practice Mock Tests

Regular mock tests help in:

• Identifying weak areas

• Improving accuracy

• Managing time

Step 4: Revision Strategy

• Weekly revision of completed topics

• Monthly full syllabus revision

• Last 10 days only revise notes and practice tests

Common Mistakes to Avoid

• Ignoring Biology thinking it is lengthy

• Studying advanced-level Physics numericals

• Memorizing without understanding concepts

• Not revising regularly

• Attempting guesses without clarity (negative marking)

How eliveclass.com Helps in General Science Preparation

At eliveclass.com, we provide:

• Topic-wise RRB Group D mock tests

• Bilingual (English & Hindi) questions

• NCERT-based content

• Exam-level difficulty questions

• Regular practice sets with answers

Our mock tests are designed exactly as per RRB Group D exam pattern, helping aspirants gain confidence and accuracy.

Final Words

General Science is not difficult if prepared systematically and consistently. With a clear understanding of Physics, Chemistry, and Biology basics, regular practice, and timely revision, you can easily score high in this section.

Remember, accuracy matters more than attempts in RRB Group D. Focus on clarity, revise frequently, and practice with quality mock tests. A strong hold on General Science can become the deciding factor between selection and rejection.

Stay consistent, trust your preparation, and keep practicing with eliveclass.com.