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New Vacancy 2026
OPSC Scientific Officer Chemistry 2026 Notification, Online Form & Exam Date
OPSC Scientific Officer Chemistry Vacancy 2026 provides a golden opportunity for aspirants seeking stable government jobs. Interested candidates can apply online for the posts after verifying the official eligibility criteria, age limit, and educational qualifications. Ensure you track the application deadlines and stay updated with the latest OPSC Scientific Officer Chemistry 2026 recruitment news for a smooth registration process.
To crack the OPSC Scientific Officer Chemistry 2026 exam, understanding the detailed syllabus and exam pattern is mandatory. Aspirants should focus on strategic planning and rigorous time management for each selection phase. Boosting your speed through online mock tests and regular practice is the key to securing a high score in this competitive recruitment. For premium study material and practice sets, follow the expert curated resources on toppersexam.com.
To crack the OPSC Scientific Officer Chemistry 2026 exam, understanding the detailed syllabus and exam pattern is mandatory. Aspirants should focus on strategic planning and rigorous time management for each selection phase. Boosting your speed through online mock tests and regular practice is the key to securing a high score in this competitive recruitment. For premium study material and practice sets, follow the expert curated resources on toppersexam.com.
OPSC Scientific Officer Chemistry Free Mock Test
Crack the OPSC Scientific Officer Chemistry Mock Test 2026 with the help of an online Test series or a free mock test. Every sample paper in the OPSC Scientific Officer Chemistry Exam has a designated weight, so do not miss out on any paper. Prepare for the OPSC Scientific Officer Chemistry mock test and check your test scores.
OPSC Scientific Officer Chemistry Syllabus 2027, Exam Pattern
OPSC Scientific Officer Chemistry Syllabus 2027, Exam Pattern, Exam Date 2027
Detail Information about OPSC has published notification 2027 for the recruitment of Scientific Officer (Chemistry) 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 Date also.
OPSC Scientific Officer (Chemistry) Syllabus 2027 - Overview
| Exam Conducting Authority | Odisha Public Service Commission (OPSC) |
| Name of the Post | Scientific Officer (Chemistry) |
| Total Vacancies | 10 |
| Exam Date 2027 | 17th January 2027 |
| Job Location | Odisha |
| Category | Syllabus and Exam Pattern |
| Official Website | www.opsc.gov.in |
OPSC Scientific Officer (Chemistry) Syllabus 2027
Paper - I
General English
1. Synonyms
2. Antonyms
3. Use of common phrases & Idioms
4. Use of appropriate Prepositions and Comprehension
5. Ordering of words in a sentence
6. Ordering of sentences
7. Spotting of errors
8. Use of appropriate and qualifying words
General Awareness, General Aptitude and Reasoning
1. Reasoning
2. Aptitude
3. Data interpretation and general awareness on Science
4. Current affairs
5. Geography
6. History of India and Odisha
7. Indian constitution
8. Socio Economic Political Developments
9. Human right
10. Fundamentals of Computer
11. Psychology
12. General Awareness
Paper - II
Concerned Subject (Chemistry)
Unit I
Analytical Chemistry: Classification of analytical methods - Classical and Instrumental, volumetric, titrimetric and gravimetric techniques, selection of proper analytical techniques: types and range of determination, accuracy, precision and errors, sample preparation, handling of reagents with safety, density and viscosity measurements.
Statistical Analysis : Mean, Mode, Median, Correlation and Regression analysis, Null Hypothesis, Variance, t-test, Chi-Square test. Type of Data, Measure of central tendency, Dispersion of Data, Correlation, Probability and Proof.
Group Theory: Symmetry elements and operations; Point groups and character tables; Internal coordinates and vibrational modes; symmetry adapted linear combination of atomic orbitals (LCAO-MO); construction of hybrid orbitals using symmetry aspects.
Electrochemistry: Electrochemical cells and cell reactions; Standard electrode potentials; Nernst equation and its relation to AG; Electrochemical series, emf of galvanic cells; Faraday's laws of electrolysis; Electrolytic conductance, specific, equivalent and molar conductivity, Kohlrausch's law; Concentration cells.
Unit II
Analysis of unknown samples :-
Organic: Physical examination, element detection (N, S, Cl, Br, 1, F), Functional Group analysis (-ОН, -СОOH, -NO2, -NH2, -CONH2, -CO-, -CHО, Hydrocarbons).
Reaction Mechanisms: Basic mechanistic concepts - kinetic versus thermodynamic control, Hammond's postulate and Curtin-Hammett principle. Methods of determining reaction mechanisms through kinetics, identification of products, intermediates and isotopic labelling.Linear free-energy relationship - Hammett and Taft equations.Nucleophilic and electrophilic substitution reactions (both aromatic and aliphatic).Addition reactions to carboncarbon and carbon-heteroatom N and O) multiple bonds.Elimination reactions. Reactive intermediates - carbocations, carbanions, carbenes, nitrenes, arynes and free radicals. Molecular rearrangements.
Pericyclic Reactions and Photochemistry: Electrocyclic, cycloaddition and sigmatropic reactions. Orbital correlations - FMO and PMO treatments, Woodward-Hoffmann rule. Photochemistry of alkenes, arenes and carbonyl compounds. Photooxidation and photoreduction.Di--methane rearrangement, Barton-McCombie reaction, Norrish type-I and II cleavage reaction.
Inorganic: Qualitative analysis of cations and anions with special reference to cations i.e. As, Sb, Pb, Ba, Cu, Hg, Zn and Tl and anions i.e.NO2, NO3,S2, SO4², SO32, halides and cyanides.
Main Group Elements: Hydrides, halides, oxides, oxoacids, nitrides, sulfides - shapes and reactivity. Structure and bonding of boranes, carboranes, silicones, silicates, boron nitride, borazines and phosphazenes.Allotropes of carbon, phosphorous and sulphur.Industrial synthesis of compounds of main group elements.Chemistry of noble gases, pseudohalogens, and interhalogen compounds.Acid-base concepts and principles (Lewis, Bronsted, HSAB and acidbase catalysis).
Transition Elements: Coordination Chemistry structure and isomerism, theories of bonding (VBT, CFT, and MOT). Energy level diagrams in various crystal fields, CFSE, applications of CFT, JahnTeller distortion. Electronic spectra of transition metal complexes: spectroscopic term symbols, selection rules, Orgel and Tanabe-Sugano diagrams, nephelauxetic effect and Racah parameter, charge-transfer spectra. Magnetic properties of transition metal complexes. Ray-Dutt and Bailar twists, Reaction mechanisms: kinetic and thermodynamic stability, substitution and redox reactions. Metal-metal multiple bond.
Analysis of poisonous gases: CO, H2S, PH3, CH4 and NH3.
Salt Analysis
Unit III
Spectroscopic and other techniques :-
Unifying principles: Electromagnetic radiation, interaction of electromagnetic radiation with matter- absorption, emission, transmission, reflection, refraction, dispersion, polarization and scattering. Basic principles, instrumentation and applications: UV- Visible, FTIR, NMR, XRD, AAS, Mass, Spectroscopy, Fluorescence and Phosphorescence spectrophotometry, ESR Spectroscopy. Fundamentals of Acids, Bases and Buffers, pH, pKa, and pKb values, principles, instrumentation and applications of pH metry, Potentiometry, Conductometry and Microscopic analysis in forensic Science.
Unit IV
Chromatography and Electrophoresis
General Principles and types of chromatographic techniques: Paper chromatography, column chromatography, Thin layer chromatography, adsorption chromatography, partition chromatography, Gas chromatography, Gas-liquid chromatography, Ion exchange chromatography, Exclusion (permeation) chromatography, affinity chromatography, HPLC, HPTLC, HPTLC MS, Capillary Chromatography and Electrophoresis.
Unit V
Basic Organic Chemistry: Important preparations and properties of alkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, phenols, carboxylic acids, aldehydes, ketones, amines and nitro compounds.
Unit VI
Proteins: Classification, Structure and Properties, Molecular weight determination, Isoelectric point, coagulation and denaturation. Carbohydrates: Classification, Structure and Reactions.
Fats and Lipids: Classification, Structure and Reactions.
Alkaloids: Classification, Isolation and Identification.
Unit VII
Environmental Pollution: Air, water and soil pollutants, their permissible limits.Standards of potable water, water analysis, sources of water pollution.Analysis of agricultural, Industrial, and domestic effluents.Determination of adulterants in various food commodities.Pesticide analysis in food products. Soaps and detergents: Types and analysis. Detection of substandard fertilizers by chemical and instrumental techniques.Methods for sample collection and preparation, Health Safety Security and Environment Policies.
Unit VIII
Paints, pigments and dyes: Classification and identification of dyes, analysis of dyes used in Trap cases.Role of dyes in crime investigation.
Paints and pigments: Types and chemical composition, toxic effects on living organisms and identification techniques, authenticity of brands of paints.
Unit IX
Analysis and estimation of illicit liquor including methyl alcohol, ethyl alcohol, denatured spirit, acetone, chloroform, ether, other solvents and adulterants.Laws pertaining to Excise Act.
Unit X
Metals, alloys and their types.Identification composition and analysis of metals and alloys by chemical methods and instrumental techniques. Hallmarking of precious metals as per BIS. Trace metal analysis and its forensic importance.
Unit XI
Extraction, isolation & identification of Alkaloids viz: Morphine, Codeine, Brucine, Strychnine, Nicotine, Atropine, Hyoscyamine, Cocaine, Heroin and Dhatura alkaloids.Extraction, isolation & identification of sedative, depressants, stimulants, opiates and drugs of abuse.
Unit XII
Medicinal Chemistry: General drugs, Designer Drugs, Drugs of abuse, mode of administration and pharmacological action of drugs of forensic importance. Drugs Act, Excise Act and NDPS Act.
Unit XIII
Narcotics drugs and psychotropic substances: Definition, types, appearance, production and chemical characteristics. Common terminology of various drugs.Drug action on central nervous system.Sampling and analytical techniques for qualitative & quantitative analysis.
Unit XIV
Plants of Narcotic importance and their morphology: Papaversomniferum, Cannabis sativa, Coca plant and analysis of their active constituents.
Psychotropic substances: Amphetamines, Benzodiazepines and their derivatives. Barbiturates, Lysergides, Mascalines and Psilocybin etc.
Unit XV
Petroleum Products: Definition, types, sampling methods, specifications and characteristics as per BIS. Analytical tools for qualitative and quantitative analysis of petroleum products. Principles of techniques and Instruments used in detection of adulterants in petroleum products.
Unit XVI
Hydrocarbons: Cracking and reforming of hydrocarbons, distillation range of fuel oils of petroleum origin; Gasoline, Kerosene, diesel etc. and their correlation with GLC. Analysis of Lubricating oil, Grease, paints, adhesives and synthetic fibers.Determination of relative density, flashpoint, viscosity index, cetane number, octane number and dyes.
Unit XVII
Arson and Burning cases: Legal definition of Arson and its motives. Types and chemistry of fire, fire safety and fire fighting techniques. Prevention of fire, Role of forensic science in investigation of fire, cause of ignition and evidence collection.
Arson residue examination: Arson debris, burnt articles, flammable liquids, their collection, preservation and analysis.
Dowry death cases: Investigation and analysis.
Unit- XVIII
Explosive: General aspects of explosive, their composition, properties and classification-high and low, Primary and secondary, military and commercial etc. Explosion theory, Explosive and improvised explosive devices. Theory and types of Non-explosive explosions.Sampling and analysis of debris from explosion sites.
Laws: IPC Sections related to Arson and Explosives; EC Act; Petroleum Act.
OPSC Scientific Officer (Chemistry) Exam Pattern 2027
Negative Marking : 0.25 (Each Paper)
| Paper | Subject | No. of Question | Marks | Duration |
| Paper I | General English | 50 | 50 | 1 Hour & 30 Minutes |
| General Awareness, General Aptitude and Reasoning | 50 | 50 | ||
| Paper II | Concerned Subject (Chemistry) | 150 | 300 | 2 Hour & 30 Minutes |
| Total | 250 | 400 | 4 Hours |
Exam Date 2027 : 17th January 2027
Starting Date of Application Form : 06th November 2026
Last Date of Application Form : 26th November 2026
Total Post : 10
Last Date of Application Form : 26th November 2026
Total Post : 10
OPSC Scientific Officer (Chemistry) Exam Free Online Test Series
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OPSC Scientific Officer Chemistry Exam Free Online Question Bank
OPSC Scientific Officer Chemistry question answer with solutions are available in Hindi & English. Join MCQ, Important Questions, Question Bank, questions and answers for Free OPSC Scientific Officer Chemistry exam preparation.
FAQs
OPSC Scientific Officer Chemistry 2027 Free Mock Test Frequently Asked Questions (FAQ's)
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