In short: Bihar Board (BSEB) Class 10 MCQs have a predictable repeat pattern. After analyzing previous year papers, a significant number of objective questions reappear year after year — either as exact repeats or with minor value changes. This guide lists the most repeated MCQ topics and specific question types across Maths, Science, Social Science, Hindi, and English so you can target the highest-probability questions first.
The 50-mark objective section in Bihar Board is the single biggest scoring opportunity. With 50 MCQs carrying 1 mark each and no negative marking, this section rewards students who study smart. The data below is based on analysis of previous year BSEB Matric papers to identify the MCQ topics and question types that appear most frequently.
How We Analyzed the Data
| Parameter | Detail |
|---|---|
| Papers analyzed | BSEB Matric papers from previous years |
| Subjects covered | Mathematics, Science, Social Science, Hindi, English |
| What we tracked | MCQ topic, question phrasing, answer options, chapter source |
| Definition of "repeat" | Same topic with same or nearly identical phrasing, or same concept with changed numerical values |
Key finding: Approximately 60-70% of MCQs in any given year come from a pool of frequently tested topics. About 20-30% are near-exact repeats from previous years.
Mathematics — Most Repeated MCQ Topics
Repeat Frequency Table
| MCQ Topic | Times Appeared (out of recent papers) | Chapter | Marks at Stake |
|---|---|---|---|
| Value of sin 30°, cos 60°, tan 45° etc. | Every year (multiple MCQs) | Trigonometry | 3-5 |
| Discriminant (D = b²-4ac) and nature of roots | Every year | Quadratic Equations | 2-3 |
| nth term of AP: aₙ = a + (n-1)d | Every year | Arithmetic Progression | 1-2 |
| Sum of AP: Sₙ = n/2[2a+(n-1)d] | Every year | Arithmetic Progression | 1-2 |
| Distance formula between two points | Every year | Coordinate Geometry | 1-2 |
| HCF and LCM by prime factorization | Every year | Real Numbers | 1-2 |
| Zeroes of a quadratic polynomial (α+β, αβ) | Every year | Polynomials | 1-2 |
| Probability of a single event (coin, dice, cards) | Every year | Probability | 2-3 |
| CSA/TSA/Volume of cylinder, cone, sphere | Every year | Surface Areas and Volumes | 2-3 |
| Median class identification from frequency table | Most years | Statistics | 1-2 |
| Section formula (internal division) | Most years | Coordinate Geometry | 1 |
| Area of sector = (θ/360)πr² | Most years | Areas Related to Circles | 1-2 |
Exact MCQ Types That Repeat in Maths
Type 1: Trigonometric value questions "sin 60° का मान है:" or "The value of tan 45° is:"
- Options: Four trigonometric values
- Appears: 3-5 times per paper in different combinations
- Preparation: Memorize the complete trig table (0°, 30°, 45°, 60°, 90°)
| Angle | sin | cos | tan |
|---|---|---|---|
| 0° | 0 | 1 | 0 |
| 30° | 1/2 | √3/2 | 1/√3 |
| 45° | 1/√2 | 1/√2 | 1 |
| 60° | √3/2 | 1/2 | √3 |
| 90° | 1 | 0 | Not defined |
Type 2: Nature of roots using discriminant "If b²-4ac > 0, the roots are:" or "For 2x²+3x+1=0, the nature of roots is:"
- This tests: D > 0 (two real distinct), D = 0 (two equal), D < 0 (no real roots)
- Appears: 2-3 MCQs per year
Type 3: AP term calculation "The 10th term of AP 2, 5, 8, 11... is:" — Direct substitution in aₙ = a + (n-1)d
- Appears: 1-2 MCQs per year with different sequences
Type 4: Probability basics "A coin is tossed twice. The probability of getting at least one head is:" or "A dice is thrown once. P(getting a prime number) is:"
- Appears: 2-3 MCQs per year
- Always uses coins, dice, or playing cards as context
Type 5: HCF/LCM "The HCF of 12 and 18 is:" or "The LCM of 4, 6, and 8 is:"
- Uses prime factorization method
- Appears: 1-2 MCQs per year
Science — Most Repeated MCQ Topics
Physics
| MCQ Topic | Repeat Frequency | Chapter |
|---|---|---|
| Mirror formula (1/v + 1/u = 1/f) application | Every year | Light |
| SI unit of resistance (Ohm) | Every year | Electricity |
| Ohm's Law (V = IR) | Every year | Electricity |
| Power formula (P = VI = I²R = V²/R) | Every year | Electricity |
| Image by convex lens at 2F | Most years | Light |
| Magnetic field direction (Fleming's rule) | Most years | Magnetic Effects |
| Lens formula application | Most years | Light |
| Focal length sign convention | Most years | Light |
Most repeated exact question types:
- "The SI unit of electric resistance is: (a) Volt (b) Ampere (c) Ohm (d) Watt"
- "When an object is placed at 2F of a convex lens, the image is: (a) at 2F, real, inverted, same size..."
- "Power of a lens is measured in: (a) metre (b) dioptre (c) watt (d) ohm"
Chemistry
| MCQ Topic | Repeat Frequency | Chapter |
|---|---|---|
| pH of acidic/basic/neutral solutions | Every year | Acids, Bases, Salts |
| Balancing chemical equations | Every year | Chemical Reactions |
| Functional group of alcohol (-OH) | Every year | Carbon Compounds |
| Litmus test results (red/blue) | Every year | Acids, Bases, Salts |
| Position of metals in periodic table | Most years | Periodic Classification |
| Electron configuration and valency | Most years | Periodic Classification |
| Type of reaction identification | Most years | Chemical Reactions |
Most repeated exact question types:
- "The pH of a neutral solution is: (a) 0 (b) 7 (c) 14 (d) 1"
- "Which is a displacement reaction?" (followed by four reaction equations)
- "The functional group -OH is present in: (a) Aldehyde (b) Ketone (c) Alcohol (d) Carboxylic acid"
Biology
| MCQ Topic | Repeat Frequency | Chapter |
|---|---|---|
| Part of flower that develops into fruit | Every year | Reproduction |
| Function of stomata | Every year | Life Processes |
| Hormone functions (insulin, thyroxine, adrenaline) | Every year | Control and Coordination |
| Mendel's dominant/recessive traits | Most years | Heredity and Evolution |
| Part of the brain controlling balance | Most years | Control and Coordination |
| Blood vessel carrying oxygenated blood | Most years | Life Processes |
| Photosynthesis equation | Most years | Life Processes |
Most repeated exact question types:
- "The ovary of a flower develops into: (a) Seed (b) Fruit (c) Pollen (d) Stamen"
- "Insulin is produced by: (a) Liver (b) Pancreas (c) Kidney (d) Stomach"
- "Which part of the brain controls balance? (a) Cerebrum (b) Cerebellum (c) Medulla (d) Pons"
Social Science — Most Repeated MCQ Topics
History
| MCQ Topic | Repeat Frequency |
|---|---|
| Date of specific events (1857, 1942, 1919, 1930) | Every year |
| Who started which movement | Every year |
| Bihar-specific history events (Champaran, 1857 in Bihar) | Most years |
| Newspaper/publication associated with leaders | Most years |
Geography
| MCQ Topic | Repeat Frequency |
|---|---|
| Types of soil (alluvial, black, red, laterite) | Every year |
| Major crops and growing seasons (kharif, rabi) | Every year |
| Rivers and their origins | Most years |
| Mineral resources and locations | Most years |
Political Science
| MCQ Topic | Repeat Frequency |
|---|---|
| Features of democracy | Every year |
| Types of government (federal vs unitary) | Every year |
| Fundamental rights (Article numbers) | Most years |
| Election commission and its role | Most years |
Economics
| MCQ Topic | Repeat Frequency |
|---|---|
| Sectors of economy (primary, secondary, tertiary) | Every year |
| Definition of development indicators (HDI, per capita income) | Every year |
| Types of unemployment | Most years |
| Banking and credit definitions | Most years |
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Hindi — Most Repeated MCQ Topics
| MCQ Topic | Repeat Frequency | Expected MCQs |
|---|---|---|
| Kavi parichay (poet introduction) — name and era | Every year | 3-4 |
| Gadya parichay (prose writer identification) | Every year | 2-3 |
| Sandhi viched (sandhi splitting) | Every year | 2-3 |
| Samas (compound words identification) | Every year | 2-3 |
| Muhavare and lokoktiyan (idioms) | Every year | 2-3 |
| Vakya shuddhi (sentence correction) | Most years | 1-2 |
| Karak identification | Most years | 1-2 |
| Paryayvachi and vilom shabd (synonyms/antonyms) | Most years | 2-3 |
English — Most Repeated MCQ Topics
| MCQ Topic | Repeat Frequency | Expected MCQs |
|---|---|---|
| Fill in the blank with correct preposition | Every year | 3-4 |
| Tense identification/conversion | Every year | 3-4 |
| Voice change (active to passive) | Every year | 2-3 |
| Direct-indirect speech conversion | Every year | 2-3 |
| Correct spelling identification | Most years | 1-2 |
| Synonym/antonym of a given word | Most years | 2-3 |
| Article usage (a/an/the) | Most years | 1-2 |
Subject-Wise Guaranteed Marks from Repeated MCQs
Based on the repeat pattern analysis:
| Subject | MCQs from Repeated Topics | Marks (Minimum Expected) | How to Prepare |
|---|---|---|---|
| Mathematics | 30-35 out of 50 | 30-35 | Memorize formulas + solve 5 previous year papers |
| Science | 28-33 out of 50 | 28-33 | Learn definitions + practice MCQs by chapter |
| Social Science | 25-30 out of 50 | 25-30 | Memorize dates, definitions, features |
| Hindi | 25-30 out of 50 | 25-30 | Know kavi/lekhak parichay + grammar rules |
| English | 25-30 out of 50 | 25-30 | Practice grammar rules + vocabulary |
Conservative estimate: By focusing on just the frequently repeated MCQ topics, a student can score 130-160 marks out of 250 (across 5 subjects, MCQ section only). That is 130-160 marks before writing a single subjective answer.
How to Use This Data — A 30-Day MCQ Plan
| Day | Action | Time |
|---|---|---|
| Day 1-2 | Write down all Maths formulas. Solve 50 Maths MCQs from PYQs. | 2 hours/day |
| Day 3-4 | Write down all Science definitions and formulas. Solve 50 Science MCQs. | 2 hours/day |
| Day 5-6 | List all History dates and Geography facts. Solve 50 SSt MCQs. | 2 hours/day |
| Day 7-8 | Revise Hindi kavi parichay and grammar rules. Solve 50 Hindi MCQs. | 2 hours/day |
| Day 9-10 | Revise English grammar rules. Solve 50 English MCQs. | 2 hours/day |
| Day 11-15 | Solve one full previous year paper (MCQ section only) per day, all subjects. | 3 hours/day |
| Day 16-20 | Identify questions you got wrong. Revise those specific topics. | 2 hours/day |
| Day 21-25 | Solve another set of previous year papers (MCQ only). Target 40+ per subject. | 3 hours/day |
| Day 26-28 | Speed practice: 50 MCQs in 30 minutes. Build exam speed. | 2 hours/day |
| Day 29-30 | Final formula and definition revision. Quick-fire MCQ quiz. | 1.5 hours/day |
Why Bihar Board MCQs Repeat
Understanding why helps you prepare better:
-
Limited question bank: BSEB draws from a finite pool of concepts. With only 14 chapters per subject and each chapter having a fixed set of testable concepts, the MCQ pool is naturally limited.
-
Formula-based approach: Unlike CBSE which tests application, BSEB MCQs primarily test recall. There are only so many ways to test "What is sin 30°?" — the answer is always 1/2.
-
Consistent exam setters: The BSEB question paper committee follows established patterns. They test the same core concepts every year because those concepts form the foundation.
-
No negative marking encouragement: Since there is no penalty for wrong answers, BSEB tends to include straightforward MCQs that test basic knowledge rather than tricky eliminators.
Common Mistakes When Using PYQ Data
-
Memorizing answers instead of understanding concepts: If you memorize "sin 30° = 1/2" without understanding the trig table, a question asking "cos 60°" (also 1/2) might stump you. Learn the concept, not just the answer.
-
Assuming exact questions will repeat: The topic repeats, the exact wording may change. "Distance between (3,4) and (0,0)" becomes "Distance between (5,12) and (0,0)". The formula is the same, the numbers differ.
-
Ignoring the 30-40% non-repeating questions: Not all MCQs are repeats. About 30-40% will be fresh each year. A strong conceptual base handles both repeated and new questions.
-
Not timing yourself: Knowing the answers is useless if you cannot answer 50 MCQs in 30-35 minutes. Practice under timed conditions.
-
Only doing MCQs and ignoring subjective: The MCQ section is 50 marks. The subjective is also 50 marks. Do not sacrifice one for the other.
Frequently Asked Questions
Do exact same MCQ questions repeat in Bihar Board?
Some MCQs repeat with the exact same wording (especially definition-based ones like "pH of neutral solution is 7"). Most repeats are topic-level — the same concept is tested but with different numbers or slight phrasing changes. For example, the discriminant question appears every year but with different quadratic equations.
How many previous year papers should I solve for MCQ preparation?
Solve at least 5 previous year papers per subject (MCQ section only). This covers the majority of repeated topics. If you want to be thorough, solve 7-8 papers. Beyond that, you get diminishing returns.
Is it enough to only prepare repeated MCQ topics?
No. Repeated topics cover approximately 60-70% of the MCQs. The remaining 30-40% will be from topics that are less frequently tested. A strong conceptual base across all chapters is important. Use the repeat data to prioritize, not to limit your preparation.
Which subject has the most predictable MCQs?
Mathematics has the most predictable MCQ section because it is formula-based. If you know the formulas, you can solve most Maths MCQs regardless of how the question is worded. Hindi grammar MCQs (sandhi, samas, karak) are also highly predictable.
Can I score 45+ out of 50 in the MCQ section using PYQ analysis?
Yes, 45+ is achievable. Students who combine PYQ analysis with thorough formula revision and timed practice consistently score 42-48 in the MCQ section. The key is speed and accuracy — know your formulas cold and practice filling the OMR sheet quickly.
Where can I find Bihar Board previous year papers?
BSEB official website has some papers. Search for "Bihar Board Class 10 Previous Year Papers" on any bookstore website — compilations cost around Rs 100-200. YouTube has solved paper walkthroughs. Padhaao's Question Bank mode covers the most frequently tested topics.
Related Guides
Bihar Board Class 10 Ganit Chapter-Wise Weightage Hindi | Bihar Board Class 10 Vigyan Chapter-Wise Weightage Hindi | Bihar Board Class 10 Objective Full Marks MCQ Strategy Hindi | Bihar Board Class 10 Ganit Important Questions Hindi | Bihar Board Class 10 Taiyari Hindi | Bihar Board Class 12 Taiyari Hindi
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