BPSC Chemistry Mock Test 2027 (PGT/TRE & CCE Prelims): Free Practice Sets
What BPSC exam are you preparing for?
The Chemistry section of the Bihar Public Service Commission (BPSC) is divided and covers two completely separate groups of candidates. Make sure you select the examination you intend to take in order that you may study the relevant syllabus level:
Chemistry can achieve high marks in the examinations of Bihar state so long as the appropriate amount of concentration is given. Students often waste a lot of time because they study stuff at the wrong level.
A person who is applying for a teaching post at a school should have a good understanding of reaction mechanisms, thermodynamics, and coordination compounds; meanwhile, someone preparing for the CCE prelims should possess practical knowledge of common acids and bases, polymers, and fertilizers.
The BPSC Chemistry Mock Test 2027 series provides you with customised practice programmes that match your individual syllabus. You will do some realistic practice papers, learn how to manage exam time, and acquire the confidence you need if you want to secure a top rank.
Competitor Gap Analysis: The Reasons Why Generic Chemistry Test Series Fail
Many testing platforms combine all the chemistry questions together without regard to the specific position the candidate is aiming for. The comparison table which is below demonstrates the importance of having separate and dedicated tracks:
| Feature / Preparation Need | What Most Generic Test Sites Offer | What Our Dedicated Platform Provides | How This Helps Your Score |
|---|---|---|---|
| Exam Segmentation | Mixes questions intended for school teachers with those for civil service prelims | Keeps the PGT/TRE (80 marks) and CCE Prelims (8–10 questions) in separate test tracks | You avoid spending time on material at an inappropriate difficulty level |
| Organic Chemistry Depth | Offers only surface-level questions on functional groups | Includes detailed reaction mechanisms, stereochemistry, and named reactions for PGT | Prepares teacher aspirants to meet the Class 11–12 teaching standards |
| Everyday Chemistry Focus | Ignores applications in industry and domestic life | Provides comprehensive sets on fertilizers, soaps, polymers, and metallurgy for CCE | Helps you earn marks directly in the CCE General Science section |
| Performance Tracking | Provides only a single overall score without insights by branch | Offers branch-wise analysis across Physical, Organic, and Inorganic Chemistry | Enables you to identify your exact weak areas well before the exam day |
| Language Support | Often offers questions only in English or with poor Hindi translation | Provides verified bilingual questions in Hindi (रसायन विज्ञान) and English | Allows you to practice in the language preferred for your exam |
SECTION 1: BPSC TRE / PGT Chemistry (80 Marks Subject Paper)
This section is built specifically for candidates preparing for Higher Secondary Teacher (Class 11–12) positions under the Bihar Education Department.
In the BPSC Teacher Recruitment Examination (TRE), your appointment depends heavily on the 80 marks of Part III (Subject Paper). The questions require in-depth conceptual clarity across graduation-level topics.
Start BPSC TRE PGT Chemistry Mock Test (80 Marks)
Physical, Organic & Inorganic Chemistry • Graduation Standard • Instant Score & Rank
Attempt Free PGT Chemistry TestBPSC TRE PGT Chemistry Exam Blueprint
The 80 marks allocated to Chemistry in Part III are divided evenly across the three traditional branches:
| Section | Total Marks | Difficulty Level | Core Coverage |
|---|---|---|---|
| Physical Chemistry | ~27 Marks | Graduation Level | Thermodynamics, Chemical Kinetics, Electrochemistry, Equilibrium, Solutions |
| Organic Chemistry | ~27 Marks | Graduation Level | General Organic Chemistry (GOC), Hydrocarbons, Reaction Mechanisms, Biomolecules |
| Inorganic Chemistry | ~26 Marks | Graduation Level | Periodic Trends, Chemical Bonding, Coordination Compounds, Transition Elements |
| Total Subject Paper | 80 Marks | Class 11–12 Teaching Standard | Dedicated Subject Paper (Part III of TRE Exam) |
Detailed Micro-Syllabus: BPSC TRE / PGT Chemistry
Use this micro-syllabus checklist to ensure complete coverage of all graduation-standard topics:
- Periodic Table Trends & Periodicity: Effective nuclear charge, Slater rules, trends in atomic and ionic radii, ionization enthalpy, electron gain enthalpy, and electronegativity scales (Pauling and Mulliken).
- Chemical Bonding & Molecular Structure: Valence Bond Theory, directional characteristics of covalent bonds, hybridization involving s, p, and d orbitals, VSEPR theory for molecular geometry, Molecular Orbital Theory (MOT) for homonuclear and heteronuclear diatomic molecules, and hydrogen bonding.
- Coordination Compounds: Werner's theory, IUPAC nomenclature of coordination complexes, isomerism (structural and stereoisomerism), Crystal Field Theory (CFT), crystal field splitting in octahedral and tetrahedral complexes, spectrochemical series, magnetic properties, and Jahn-Teller distortion.
- Transition (d-block) & Inner Transition (f-block) Elements: Electronic configurations, variable oxidation states, catalytic properties, colored ion formation, magnetic behavior, lanthanide contraction, and separation of lanthanides.
- p-Block Elements: Group 13 to Group 18 chemistry, inert pair effect, anomalous behavior of first elements, allotropy, structure of silicates, diborane, oxoacids of nitrogen, phosphorus, sulfur, and interhalogen compounds.
- Principles of Metallurgy: Ellingham diagrams, thermodynamic principles of pyrometallurgy, extraction of iron, copper, zinc, and aluminum, refining techniques, and zone refining.
- General Organic Chemistry (GOC): Inductive effect, resonance, mesomeric effect, hyperconjugation, aromaticity (Hückel rule, anti-aromatic and non-aromatic species), reactive intermediates (carbocations, carbanions, free radicals, carbenes, nitrenes).
- Reaction Mechanisms: Nucleophilic substitution (SN1, SN2, SNi), electrophilic addition to alkenes and alkynes, electrophilic aromatic substitution (nitration, sulfonation, halogenation, Friedel-Crafts alkylation and acylation), elimination reactions (E1, E2, E1cB), and Saytzeff versus Hofmann products.
- Hydrocarbons: Alkanes (conformations of ethane and butane), alkenes, alkynes, and aromatic hydrocarbons.
- Haloalkanes & Haloarenes: Preparation methods, nucleophilic substitution mechanisms, organometallic compounds (Grignard reagent synthesis and reactions).
- Oxygen-Containing Functional Groups: Alcohols (distinction tests: Lucas test, Victor Meyer test), Phenols (acidity, Reimer-Tiemann reaction, Kolbe reaction), Ethers (cleavage by HI), Aldehydes and Ketones (nucleophilic addition, Aldol condensation, Cannizzaro reaction, Perkin reaction, Clemmensen and Wolff-Kishner reductions), and Carboxylic Acids with derivatives.
- Nitrogen-Containing Compounds: Amines (basic strength order in aqueous and gaseous phases, Gabriel phthalimide synthesis, Hoffmann bromamide degradation), and diazonium salts (synthetic applications).
- Biomolecules & Polymers: Carbohydrates (classification, glucose structure, mutarotation), amino acids (zwitterion, isoelectric point), proteins (primary, secondary, tertiary structures), nucleic acids (DNA and RNA structure), and polymer synthesis (addition vs condensation polymers, Nylon-6,6, Bakelite, Dacron).
- Chemical Thermodynamics: First law, work, heat, internal energy, enthalpy, heat capacity, Hess's law, Second law of thermodynamics, entropy changes in reversible and irreversible processes, Gibbs free energy, Helmholtz energy, criteria for spontaneity, and third law of thermodynamics.
- Chemical Kinetics: Rate laws, order and molecularity of reactions, integrated rate equations for zero, first, and second-order reactions, half-life methods, temperature dependence of reaction rates, Arrhenius equation, activation energy, and collision theory.
- Electrochemistry: Specific, equivalent, and molar conductivity, Kohlrausch's law, galvanic cells, Nernst equation, calculation of cell EMF and equilibrium constant, concentration cells, fuel cells, and corrosion mechanisms.
- Solutions & Colligative Properties: Raoult's law, ideal and non-ideal solutions, vapor pressure-composition curves, colligative properties (relative lowering of vapor pressure, elevation of boiling point, depression of freezing point, osmotic pressure), abnormal molecular masses, and van 't Hoff factor (i).
- Chemical & Ionic Equilibrium: Law of mass action, Kp and Kc relationships, Le Chatelier's principle, ionization of weak electrolytes, Ostwald dilution law, common ion effect, pH calculations, buffer solutions, Henderson-Hasselbalch equation, solubility product (Ksp), and salt hydrolysis.
- Atomic Structure & Solid State: de Broglie relation, Heisenberg uncertainty principle, Schrödinger wave equation (qualitative treatment), quantum numbers, Pauli exclusion principle, Hund's rule, crystal lattices, unit cells, Bragg's law, packing efficiency, point defects (Schottky and Frenkel defects), and electrical properties of solids.
PYQ Trend Analysis: BPSC TRE PGT Chemistry
Review the shifting question patterns across previous teacher recruitment examination cycles:
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In TRE 1.0 and TRE 2.0, questions were direct, factual, and based on standard textbook statements. From TRE 3.0 and TRE 4.0 onward, the commission increased the number of conceptual, multi-step numerical questions in Physical Chemistry and multi-step synthesis reactions in Organic Chemistry.
To score above 65 out of 80 in this subject paper, candidates must focus heavily on solving numerical problems in Chemical Kinetics and Thermodynamics, while memorizing named organic reactions with their stereochemical outcomes.
SECTION 2: BPSC CCE Prelims — General Science Chemistry (8–10 Questions)
This section is designed specifically for candidates preparing for the Bihar Combined Competitive Examination (CCE) Prelims.
In the CCE Prelims paper, General Science carries a total of 30 marks. Chemistry accounts for approximately 8 to 10 questions. These questions evaluate practical awareness of basic chemical concepts and their everyday applications.
Start BPSC CCE General Science Chemistry Practice
Acids, Bases, Polymers & Applied Everyday Chemistry • 1/3 Negative Marking
Attempt CCE Chemistry DrillBPSC CCE General Science Chemistry Blueprint
The table below outlines the distribution of chemistry questions within the CCE General Science section:
| Section Name | Total General Science Marks | Chemistry Questions | Difficulty Standard | Target Focus |
|---|---|---|---|---|
| General Science (Chemistry Component) | 30 Marks (Combined Science) | 8–10 Questions | Matriculation (Class 9–10) Standard | Everyday Applications, Materials, Environment |
Detailed Micro-Syllabus: CCE Prelims Chemistry
Candidates preparing for the CCE Prelims should focus on these high-frequency topics:
- Acids, Bases, and Salts: Natural sources of acids (formic acid, citric acid, tartaric acid), pH scale applications in daily life, tooth decay, soil pH correction, antacids, baking soda (NaHCO3), washing soda (Na2CO3 · 10H2O), bleaching powder (CaOCl2), and Plaster of Paris (CaSO4 · ½H2O).
- Carbon & Its Allotropes: Diamond, graphite, fullerenes, carbon nanotubes, properties of carbon monoxide and carbon dioxide, greenhouse effect, and global warming gases.
- Metals & Non-Metals in Daily Life: Reactivity series, corrosion prevention (galvanization), alloys and their compositions (brass, bronze, solder, stainless steel, amalgam), extraction basics of common metals, and uses of noble metals.
- Soaps, Detergents & Cleaning Agents: Saponification process, hydrophilic and hydrophobic ends, cleansing action in hard water versus soft water, and synthetic detergents.
- Polymers, Plastics & Fibers: Natural vs synthetic polymers, vulcanization of rubber, thermoplastic vs thermosetting plastics (polyethylene, PVC, Bakelite, melamine), and synthetic fibers (rayon, nylon, polyester).
- Fertilizers & Agricultural Chemicals: Nitrogenous fertilizers (urea and its nitrogen content of 46%), phosphatic fertilizers, NPK ratios, pesticides, and soil nutrients.
- Everyday & Forensic Chemistry: Composition of LPG (propane and butane) and CNG (methane), chemical odorant in LPG (ethyl mercaptan), tear gas, dynamite, and food preservatives (sodium benzoate).
PYQ Trends in BPSC CCE Prelims Chemistry
An analysis of previous BPSC Prelims general science questions shows that questions are direct, objective, and focused on practical utility:
- Commercial Names & Chemical Formulas: Questions asking for the chemical formula of common substances like quicklime, slaked lime, blue vitriol, or heavy water.
- Everyday Environmental Phenomena: Questions on acid rain components (sulfur dioxide and nitrogen dioxide), ozone depletion gases (chlorofluorocarbons), and smog.
- Alloys & Material Composition: Questions testing the constituents of German silver (which contains no silver) or gunmetal.
Built-in Platform Features & Performance Analytics
Our testing system is designed to provide clear diagnostics for both teacher and civil service candidates:
- Branch-Wise Accuracy Tracking: For PGT aspirants, the dashboard divides your performance into Physical, Organic, and Inorganic Chemistry. For CCE aspirants, it isolates your General Science chemistry score.
- Time-Per-Question Diagnostics: The system flags any chemistry question where you spend more than 90 seconds, helping you avoid speed traps on numericals.
- All-Bihar Leaderboard & Percentile: Compare your test scores against candidates from Patna, Gaya, Bhagalpur, Muzaffarpur, and across Bihar.
- Adaptive Testing Engine: As your accuracy improves, the system serves you more multi-statement questions to test deeper conceptual understanding.
- Step-by-Step Mechanisms & Solutions: Every question includes a full solution with structural formulas, reaction mechanisms, or balanced chemical equations.
- Daily Practice Streaks & Gamification: Earn achievement badges and build a consistent study habit with short daily review sessions.
AI-Based Weak Area Recommendation
Taking mock tests without targeted review leads to repeated mistakes on exam day. Our testing platform features an automated AI diagnostics engine that identifies specific learning gaps.
Here is how the system analyzes your test performance:
- You complete a full-length chemistry test and submit your answers.
- The engine tracks every correct, incorrect, and skipped question across all micro-topics.
- If a PGT candidate scores high in Inorganic Chemistry but misses multiple questions in Electrochemistry or Organic Reaction Mechanisms, the system highlights that specific branch in red.
- The system issues an automated study recommendation: "Your accuracy dropped to 42% in Thermodynamics and Reaction Kinetics. Review integrated rate laws and complete our 15-question Physical Chemistry drill before taking your next full test."
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Caption: AI-powered performance dashboard displaying branch-wise accuracy heatmaps, time-per-question analytics, and personalized revision recommendations for BPSC Chemistry aspirants.
Free vs Paid Mock Tests: What You Get
We believe core exam preparation should remain accessible to all students across Bihar. The table below outlines our free platform offerings compared to standard commercial packages:
| Feature / Resource | Our Free Platform Access | Commercial Paid Platforms |
|---|---|---|
| Full-Length Mock Tests | 2 Full Tests Free for PGT (80 Marks) & CCE | 1 Free Test, followed by ₹299–₹499 paywalls |
| Syllabus Segmentation | Separate test tracks for PGT and CCE | Often bundles both exams into a single generic test |
| Detailed Reaction Mechanisms | Complete step-by-step mechanisms included | Often provides only an answer key letter (A, B, C, or D) |
| AI Weak Area Heatmap | Included for all registered users | Locked behind premium subscriptions |
| Offline Printable PDF Sets | Downloadable question papers with answer keys | Available only to paying subscribers |
| All-Bihar Leaderboard Rank | Real-time percentile and district comparisons | Basic percentage score without comparative rank |
15 Common Mistakes Aspirants Make in BPSC Chemistry
Avoid these common preparation errors to protect your score:
- Studying the Wrong Depth for CCE Prelims: Reading advanced organic reaction mechanisms or quantum mechanics when preparing for CCE Prelims General Science.
- Underestimating Physical Chemistry Numericals in PGT: Relying solely on theory and skipping numerical problem practice in Thermodynamics and Chemical Kinetics.
- Confusing Reagents in Organic Chemistry: Mixing up reducing agents (such as LiAlH4 versus NaBH4) and their selectivity toward carbonyl compounds and esters.
- Ignoring Stereochemistry in PGT: Forgetting to consider stereochemical inversion (SN2) or retention (SNi) during nucleophilic substitution questions.
- Overlooking the 1/3rd Negative Marking in CCE: Randomly guessing on General Science questions without eliminating any options, which lowers your net score.
- Memorizing Common Names Without Chemical Formulas: Learning names like Plaster of Paris or Washing Soda without knowing their exact water of crystallization.
- Neglecting Coordination Isomerism: Missing geometrical and optical isomerism questions in coordination compounds with coordination number 6.
- Failing to Practice on Paper OMR Sheets: Practicing only on smartphone screens and making bubbling errors during the real offline examination.
- Studying Without a Stopwatch: Solving numerical problems casually without tracking the seconds spent per question.
- Confusing Acid Strength Trends: Mixing up the acidity order of haloacids (HF < HCl < HBr < HI) with their bond dissociation energies.
- Ignoring Basic Metallurgy Principles: Skipping Ellingham diagrams and thermodynamic reduction rules in PGT Inorganic Chemistry.
- Neglecting Everyday Chemistry in CCE: Forgetting the chemical composition of domestic items like LPG odorants, antacids, and food preservatives.
- Leaving Blank Bubbles When Certain: Leaving questions unattempted when you have already eliminated two out of four options.
- Disregarding Unit Conversions in Numericals: Forgetting to convert units (such as Joules to kiloJoules or cm to meters) in electrochemical and thermodynamic formulas.
- Relying on Outdated Syllabus Materials: Using outdated study guides that fail to reflect the increased difficulty observed from TRE 3.0 onward.
Preparation Strategy: Two Separate Paths
Because the syllabus depth differs between exams, choose the study path that matches your goal:
- Balance the Three Branches: Allocate equal study time to Physical, Organic, and Inorganic Chemistry. Do not abandon Physical Chemistry numericals.
- Master Reaction Mechanisms: Maintain a dedicated notebook for named reactions, noting catalysts, intermediates, and stereochemical outcomes.
- Solve High-Yield Numericals Daily: Solve at least 15 numerical problems every day covering Nernst equation calculations, rate laws, and colligative properties.
- Complete Timed Full Mocks: Take one full-length 80-mark practice test every week using our BPSC Chemistry Mock Test 2027 platform to build your pacing.
- Master NCERT Classes 9 and 10: Read the chemistry chapters of NCERT science textbooks thoroughly, focusing on summary boxes and tables.
- Create a Common Names Sheet: Prepare a two-page summary of common household chemicals, industrial alloys, and their chemical formulas.
- Focus on Daily-Life Applications: Pay special attention to fertilizers, polymers, atmospheric gases, and water purification methods.
- Practice Speed Quizzes: Spend 15 minutes daily solving objective science MCQs to develop fast recall.
Daily Current Affairs & General Awareness Practice
While subject knowledge is critical for PGT Part III and CCE General Science, both examinations also test general awareness. PGT candidates face a 40-mark General Studies paper (Part II), while CCE candidates face a comprehensive 150-mark prelims paper.
Spend 15 minutes each morning taking our free daily current affairs quiz to stay updated on national developments, science discoveries, and state initiatives.
Stick to standard, high-quality reference books:
| Target Exam | Subject Area | Recommended Book Title | Author / Publisher | How to Use It |
|---|---|---|---|---|
| BPSC TRE PGT | Core Chemistry | NCERT Chemistry (Class 11 & 12, Parts 1 & 2) | NCERT / BSTBPC Bihar | Your foundational text. Master every chapter exercise and summary box. |
| BPSC TRE PGT | Physical Chemistry | Advanced Physical Chemistry | Puri, Sharma & Pathania | Practice numerical problems in Kinetics, Thermodynamics, and Electrochemistry. |
| BPSC TRE PGT | Organic Chemistry | Organic Chemistry (Mechanisms & Structure) | Morrison & Boyd / OP Tandon | Study reaction mechanisms, stereochemistry, and aromatic substitutions. |
| BPSC TRE PGT | Inorganic Chemistry | Concise Inorganic Chemistry | J.D. Lee / Sudarshan Guha | Focus on Chemical Bonding, Coordination Compounds, and Periodicity. |
| BPSC CCE Prelims | General Science | General Science for Competitive Exams | Lucent Publications | Master the everyday chemistry, metals, acids, and environmental chapters. |
| BPSC CCE Prelims | Science Revision | NCERT Science Exemplar (Classes 9 & 10) | NCERT | Practice direct multiple-choice objective questions and basic reactions. |
Eligibility Criteria: PGT Teacher vs CCE Civil Services
Review the official qualification requirements for both recruitment tracks:
| Requirement Parameter | BPSC TRE PGT Chemistry (Class 11–12) | BPSC CCE Prelims (Civil Services) |
|---|---|---|
| Educational Qualification | Master's Degree (M.Sc) in Chemistry or Bio-Chemistry with minimum 50% marks + B.Ed degree | Bachelor's Degree in any discipline from a recognized university |
| Teacher Eligibility Test | Must have qualified Bihar STET Paper 2 (Chemistry) | Not Applicable |
| Minimum Age Limit | 21 Years | 20, 21, or 22 Years (depending on the specific service post) |
| Maximum Age (General Male) | 37 Years | 37 Years |
| Maximum Age (BC/EBC Male & Female) | 40 Years | 40 Years |
| Maximum Age (General Female) | 40 Years | 40 Years |
| Maximum Age (SC/ST Male & Female) | 42 Years | 42 Years |
| Selection Framework | Written Exam: Language (30) + GS (40) + Chemistry (80) = 150 Marks | Prelims (150 Marks) → Mains Written → Interview |
Recruitment Cycle Reference Note: During previous teacher recruitment cycles (such as TRE 2.0 and TRE 3.0), thousands of Higher Secondary Chemistry vacancies were advertised. Official vacancy numbers and subject reservation rosters for the 2027 cycle will be confirmed upon formal gazette publication.
BPSC TRE & CCE 2027 Projected Examination Timeline
Track the anticipated milestones for the upcoming examination cycle below:
| Recruitment Milestone | Expected Timeline | Current Verification Status |
|---|---|---|
| Official Notification Release | Late 2026 / Early 2027 | Yet to be officially announced |
| Online Application Window | 30 Days Post Notification | Yet to be officially announced |
| Admit Card Release Date | 10 to 14 Days Before Exam | Yet to be officially announced |
| Written Examination Date | Scheduled for 2027 Exam Cycle | Yet to be officially announced |
| Provisional Answer Key Release | 7 to 10 Days Post Examination | Yet to be officially announced |
| Final Results & Scorecards | 6 to 8 Weeks Post Examination | Yet to be officially announced |
How to Apply for BPSC Examinations Online
The application process is completed through the official commission web portal:
- Visit the Official Web Portal: Open your browser and go to onlinebpsc.bihar.gov.in.
- Complete One-Time Registration (OTR): Register with your active mobile number and email ID to receive your login credentials.
- Fill In Personal and Educational Details: Enter your name, father's name, date of birth, category, and degree details exactly as printed on your official certificates.
- Select Your Subject or Exam Stream: PGT candidates must select Chemistry as their specialized subject and enter their STET Paper 2 roll number. CCE candidates apply for the combined preliminary test.
- Upload Required Documents: Upload scanned copies of your photograph, signatures in Hindi and English, and qualification certificates within the prescribed dimensions.
- Pay the Examination Fee: Complete the application fee payment online using a debit card, credit card, net banking, or UPI.
- Print Confirmation Page: Download and print two copies of your completed application form for future document verification.
Your Next Step to Score Higher in BPSC Chemistry
Consistent, focused practice is what secures your selection:
- Identify your target exam track: BPSC TRE PGT Chemistry (80 Marks) or BPSC CCE Prelims General Science.
- Spend 20 minutes reviewing essential named organic reactions or common chemical formulas in your revision notebook.
- Start your free BPSC Chemistry Mock Test 2027 practice session on our platform.
- Review your scorecard, check your branch accuracy heatmap, and read the step-by-step solutions for any missed questions.
- Practice filling answers on a physical paper OMR sheet to develop accurate bubbling habits before test day.
