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UPSC Combined Geo Scientist Syllabus 2026, Exam Pattern

Complete preparation hub for UPSC Combined Geo Scientist 2026 recruitment examination

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📅 Updated On 2026-04-11✨ Update By Sandeep Pandey🌐 Hindi & English
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UPSC Combined Geo Scientist Syllabus 2026, Exam Pattern

1
UPSC Combined Geo Scientist Prelims Exam (Geology, Geophysicist, Chemist) Paper I - Hindi100 questions • 120 mins • 100 marks
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2
UPSC Combined Geo Scientist Prelims Exam (Geology, Geophysicist, Chemist) Paper I - English100 questions • 120 mins • 100 marks
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3
UPSC Combined Geo Scientist Preliminary Exam (Geology) Paper II - Hindi150 questions • 120 mins • 300 marks
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4
UPSC Combined Geo Scientist Preliminary Exam (Geology) Paper II - English150 questions • 120 mins • 300 marks
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5
UPSC Combined Geo Scientist Preliminary Exam (Chemist) Paper II - Hindi150 questions • 120 mins • 300 marks
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6
UPSC Combined Geo Scientist Preliminary Exam (Chemist) Paper II - English150 questions • 120 mins • 300 marks
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Free Important Questions

UPSC Combined Geo Scientist 2026 Exam Free Online Question Bank

1
UPSC Combined Geo Scientist Prelims Exam (Geology, Geophysicist, Chemist) Paper I - Hindi100 questions
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2
UPSC Combined Geo Scientist Prelims Exam (Geology, Geophysicist, Chemist) Paper I - English100 questions
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3
UPSC Combined Geo Scientist Preliminary Exam (Geology) Paper II - Hindi150 questions
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4
UPSC Combined Geo Scientist Preliminary Exam (Geology) Paper II - English150 questions
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5
UPSC Combined Geo Scientist Preliminary Exam (Chemist) Paper II - Hindi150 questions
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6
UPSC Combined Geo Scientist Preliminary Exam (Chemist) Paper II - English150 questions
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UPSC Combined Geo Scientist Syllabus 2026, Exam Pattern

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UPSC Combined Geo Scientist Syllabus 2026, Exam Pattern, Exam Date 2026

Detail Information about UPSC has published notification 2026 for the recruitment of Combined Geo Scientist vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam 

UPSC 
Combined Geo Scientist Syllabus 2026
 
Organization Name Union Public Service Commission (UPSC)
Post Name Combined Geo-Scientist
No. Of Vacancies 85
Category Syllabus and Exam Pattern
Selection Process 1. Preliminary exam
2. Main exam
​3. Interview
Official Website upsc.gov.in
 
UPSC Combined Geo Scientist Syllabus 2026 

Paper-I: General Studies (Common for all streams)

1. Current events of national and international importance.
2. History of India and Indian National Movement.
3. Indian and World Geography -Physical, Social, Economic Geography of India and the World.
4. Indian Polity and Governance -Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
5. Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives, etc.
6. General issues on Environmental Ecology, Bio-diversity and Climate Change – that do not require subject specialization
7. General Science


Paper II Geology :

1. Physical Geology
2. Structural Geology
3. Mineralogy
4. Igneous Petrology
5. Metamorphic Petrology
6. Sedimentology
7. Paleontology
8. Stratigraphy
9. Economic Geology
10. Hydrogeology.

Geophysics :

1. Solid Earth Geophysics
2. Mathematical Methods in Geophysics
3. Electromagnetism
4. Geophysical Prospecting
5. Remote Sensing and Thermodynamics
6. Nuclear Physics and Radiometry

Chemistry :

1. Chemical periodicity
2. Chemical bonding and structure
3. Acids and bases
4. Theoretical basis of quantitative inorganic analysis
5. Kinetic theory and the gaseous state
6. Chemical thermodynamics and chemical equilibrium
7. Solutions of non-electrolytes
8. Electrochemistry
9. Basic organic chemistry
10. Stereochemistry
11. Types of organic reactions
12. Molecular Rearrangements.

Chemistry :

Paper-I Inorganic Chemistry :


1. Inorganic solids
2. Chemistry of coordination compounds
3. Acid base titrations
4. Gravimetric Analysis
5. Redox Titrations
6. Complexometric titrations
7. Organometallic compounds
8. Nuclear chemistry
9. Chemistry of d- and f-block elements

Paper-II Physical Chemistry :

1. Kinetic theory and the gaseous state
2. Solids
3. Chemical thermodynamics and chemical equilibrium
4. Chemical kinetics and catalysis
5. Electrochemistry
6. Quantum chemistry
7. Basic principles and applications of spectroscopy
8. Photochemistry.

Paper-III Analytical and Organic : 

1. Errors in quantitative analysis
2. Separation Methods
3. Spectroscopic methods of analysis
4. Thermal methods of analysis
5. X-ray methods of Analysis
6. Inductively coupled plasma spectroscopy
7. Analysis of geological materials
8. Unstable
9. uncharged intermediates
10. Addition reactions
11. Reactions at the carbonyl group
12. Oxidation and Reduction
13. Electrocyclic Reactions
14. Spectroscopic methods of analysis.

UPSC Combined Geo-Scientist Mains Exam Syllabus :-

For the post of Geologist/ Scientist ‘B’ (Hydrogeology) :

Stage-II (Descriptive Type) :-

Geology: Paper-I :

Section A. Physical geology and remote sensing
Section B. Structural geology
Section C. Sedimentology
Section D. Paleontology
Section E. Stratigraphy

Geology: Paper-II :

Section A. Mineralogy
Section B. Geochemistry and isotope geology
Section C. Igneous petrology
Section D. Metamorphic petrology
Section E. Geodynamics

Geology: Paper-III :

Section A. Economic geology
Section B. Indian mineral deposits and mineral economics
Section C. Mineral exploration
Section D. Fuel geology and Engineering geology
Section E. Environmental geology and Natural hazards

Hydrogeology :

Section A. Occurrence and distribution of groundwater
Section B. Groundwater movement and well hydraulics
Section C. Water wells and groundwater levels
Section D. Groundwater exploration
Section E. Groundwater quality and management

For the post of Geophysicist/ Scientist ‘B’ (Geophysics) :-

Geophysics: Paper-I :

PART-A :

1. Solid Earth Geophysics
2. Earthquake Seismology
3. Mathematical methods in Geophysics
4. Geophysical Inversion

PART-B :

1. Mathematical Methods of Physics
2. Electrodynamics
3. Electromagnetic Theory
4. Introductory Atmospheric and Space Physics

Geophysics : Paper-II :-

PART-A :

1. Potential Field (Gravity and Magnetic) Methods
2. Electrical and Electromagnetic methods
3. Seismic Prospecting
4. Borehole Geophysics

PART-B :

1. Classical Mechanics
2. Thermodynamics and Statistical Physics
3. Atomic and Molecular Physics and Characterization of materials
4. Nuclear and Particle Physics

Geophysics : Paper-III :-

PART-A :

1. Radiometric and Airborne Geophysics
2. Marine Geophysics
3. Geophysical Signal Processing
4. Remote Sensing and Geohydrology

PART-B :

1. Solid State Physics and Basic Electronics
2. Laser systems
3. Digital electronics, Radar systems, Satellite communications
4. Quantum Mechanics

For the posts of Chemist/ Scientist ‘B’ (Chemical) :-

Chemistry : Paper-I (Inorganic Chemistry) :

1. Inorganic solids
2. Chemistry of coordination compounds
3. Acid base titrations
4. Nuclear chemistry
5. Chemistry of d- and f-block elements
6. Gravimetric Analysis
7. Redox Titrations
8. Complexometric titrations
9. Organometallic compounds

Chemistry : Paper-II (Physical Chemistry)

1. Kinetic theory and the gaseous state
2. Solids
3. Chemical thermodynamics and chemical equilibrium
4. Chemical kinetics and catalysis
5. Electrochemistry
6. Quantum chemistry
7. Basic principles and applications of spectroscopy
8. Photochemistry

Chemistry : Paper-III (Analytical and Organic) :-

PART-A (Analytical Chemistry) :

1. Errors in quantitative analysis
2. Separation Methods
3. Spectroscopic methods of analysis
4. Thermal methods of analysis
4. Thermal methods of analysis
6. Inductively coupled plasma spectroscopy
7. Analysis of geological materials

PART B (Organic chemistry) :

1. Unstable, uncharged intermediate
2. Addition reactions
3: Reactions at the carbonyl group
4. Oxidation and Reduction
5. Electrocyclic Reactions
6. Spectroscopic methods of analysis


UPSC Combined Geo Scientist Exam Pattern 2026

Geologist Exam

Preliminary Exam :

Negative Marking : 0.33

 
S.No Subject No.of Question Marks Duration
Paper 1 General Studies 100 100 2 Hour
Paper 2 Geology/Hydrogeology 150 300 2 Hour
  Total 250 400 4 Hour

Main Exam (Descriptive Type) : 
 
S.No Subject Marks Duration
Paper 1 Geology 200 3 Hour
Paper 2 Geology 200 3 Hour
Paper 3 Geology 200 3 Hour

Geophysicist Exam

​Preliminary Exam : 

Negative Marking : 0.33

 
S.No Subject No.of Question Marks Duration
Paper 1 General Studies 100 100 2 Hour
Paper 2 Geophysics 150 300 2 Hour
  Total 250 400 4 Hour

Main Exam (Descriptive Type) : 
 
S.No Subject Marks Duration
Paper 1 Geophysicist 200 3 Hour
Paper 2 Geophysicist 200 3 Hour
Paper 3 Geophysicist 200 3 Hour

Chemist Exam

​Preliminary Exam : 

Negative Marking : 0.33

 
S.No Subject No.of Question Marks Duration
Paper 1 General Studies 100 100 2 Hour
Paper 2 Chemistry 150 300 2 Hour
  Total 250 400 4 Hour

Main Exam (Descriptive Type) : 
 
S.No Subject Marks Duration
Paper 1 Chemistry 200 3 Hour
Paper 2 Chemistry 200 3 Hour
Paper 3 Chemistry 200 3 Hour

UPSC Combined Geo Scientist Mains Exam Date 2026 : 20th June 2026

Starting Date of Application Form : 03rd September 2025

Last Date of Application Form : 23rd September 2025

Total Post : 85
FAQs

UPSC Combined Geo Scientist 2026 Exam Syllabus Frequently Asked Questions (FAQ's)

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