CUET Science 2025 Exam Analysis: Detailed Insights and Performance Evaluation

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CUET Science Exam 2025
CUET Science Exam Overview 2025
CUET Science Exam Analysis 2025
CUET Mathematics Exam Analysis 2025
CUET Biology Paper Exam Analysis 2025
CUET Chemistry Exam Analysis 2025

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CUET Science Exam 2025

The Science paper is a domain-specific component of the Common University Entrance Test (CUET) Undergraduate 2025, conducted by the National Testing Agency (NTA). It is designed to assess a candidate’s conceptual understanding, analytical ability, and application of scientific principles based on the Class 12 NCERT syllabus. The CUET Science exam is essential for admission to Science, Engineering, Medical, and allied undergraduate programs offered by participating universities. Candidates can choose Science subjects such as Physics, Chemistry, Biology, Mathematics, or related combinations as per their course requirements.

CUET Science Exam Overview 2025

Aspect	Details
Exam Mode	Computer-Based Test (CBT)
Total Questions	50
Questions to Attempt	50
Time Duration	60 minutes
Marking Scheme	+5 for correct, −1 for wrong
Sections Covered	Subject-specific topics (Physics / Chemistry / Biology / Mathematics) based on Class 12 syllabus

CUET Science Exam Analysis 2025

The CUET 2025 Science Question Paper Analysis provides an in-depth assessment of the exam structure, difficulty level, and topic-wise weightage across individual science subjects. As a crucial domain segment of the CUET 2025 examination, this analysis enables aspirants to identify important chapters, understand recurring question patterns, and evaluate the balance between conceptual, numerical, and application-based questions. By examining the latest trends and question formats in the CUET 2025 Science exam, students can gain valuable insights to optimize their preparation strategy, strengthen conceptual clarity, improve problem-solving accuracy, and enhance their chances of securing admission to science-based undergraduate programs.

CUET Mathematics Exam Analysis 2025

Mathematics Paper 1 - Topic Distribution & Analysis

Paper has 85 questions across 3 sections (attempt 40/50). Heavy focus on Calculus (28%) and Probability (18%). Matches CUET UG Mathematics pattern.

Overall Topic Distribution

Topic	Questions	Count	%
Calculus (Derivatives, Integrals, DE)	Q552,555,556,557,565,568,569,577,578,581, 585,588,592,593,594,614,618,634	24	28%
Probability & Distributions	Q553,558,572,583,596,599,603,615,627,630,631,635	15	18%
Matrices & Determinants	Q551,554,567,575,576,584,587,600,609,626,629	11	13%
Linear Programming	Q560,562,589,590,607,616	6	7%
Vectors & 3D Geometry	Q570,571,582,586,597,598,595	7	8%
Relations & Functions	Q566,573,574,592	4	5%
Applied Math (Finance, Time Series)	Q601-624,628,632,633	20	24%

Section-wise Breakdown

Section	Questions	Key Topics	Difficulty
1: Common (15Q, Attempt 15)	551-565	Matrices(20%), Calculus(40%), Probability(20%), LPP/Area(20%)	Medium
2: Core Math (35Q, Attempt 25)	566-600	Calculus(34%), Vectors(20%), Probability(17%), Matrices(14%)	High
3: Applied Math (35Q, Attempt 25)	601-635	Finance(35%), Probability(20%), Matrices(15%), Time Series(10%)	Medium

Question Type Analysis

Type	Count	%	Examples
Direct Computation	32	38%	Q554, Q561, Q579
Matching Lists	12	14%	Q558, Q582, Q599
Multiple Correct	8	9%	Q553, Q590, Q616
Conceptual	15	18%	Q566, Q573, Q630
Application-based	18	21%	Q605, Q610, Q624

High-Weightage Subtopics

🔥 TOP 10 High-Frequency Topics:

Integration (8Q) - Definite, indefinite, areas
Differentiation (7Q) - Implicit, parametric, higher order
Probability Laws (6Q) - Independent, conditional, matching
Matrix Properties (6Q) - Inverse, singular, characteristic eq
LPP Optimization (5Q) - Max/min, feasible regions
Financial Math (5Q) - EMI, perpetuity, depreciation
Vector Algebra (5Q) - Dot/cross product, lines distance
DE Solutions (3Q) - Particular solutions, IF
Relations (3Q) - Reflexive/symmetric properties
Bernoulli Trials (3Q) - Binomial probabilities

Difficulty Pattern

Difficulty	%	Characteristics
Easy	25%	Direct formula application (Q562, Q574, Q626)
Medium	45%	Standard problems, 1-2 steps (Q551, Q572, Q605)
Hard	30%	Multi-concept, calculation-heavy (Q569, Q597, Q610)

CUET Pattern Insights

✅Matches CUET UG 2025 trends: Calculus 25-30%, Probability 15-20%, Matrices 10-15%
✅Applied Math emphasis: 24% weightage (EMI, depreciation, pipes/cisterns)
✅No Pure Geometry/Algebra: Focus on applied calculus, vectors
✅Section Strategy: Common section mandatory (75 marks), choose stronger optional section

Recommendation for CUET Prep:

Priority 1: Calculus (definite integrals, implicit diff), Probability (independent events)
Priority 2: Matrices (inverses, properties), LPP (graphical method)
Must Practice: Financial math formulas (EMI, perpetuity, sinking fund)
Time Management: Matching questions (14%) save time if practiced

CUET Biology Paper Exam Analysis 2025

Most of the 50 questions are drawn from Genetics & Evolution, Biology & Human Welfare, Ecology, Reproduction, Molecular Biology and Biotechnology, matching Units VI–X of the CUET Biology syllabus.

Below is a classification of each question (201–250) by topic and by syllabus unit/subunit.

Reproduction (Unit VI)

Q201 – Apomixis vs parthenogenesis: Sexual Reproduction in Flowering Plants (apomixis, polyembryony).
Q202 – Stages of megasporogenesis: Sexual Reproduction in Flowering Plants (megasporogenesis, female gametophyte).
Q203 – Types of pollination: Sexual Reproduction in Flowering Plants (pollination types, agents).
Q204 – LNG‑20 IUD: Reproductive Health (contraceptive methods – IUDs).
Q205 – Oral contraceptives: Reproductive Health (birth control – oral pills).
Q206 – MTP Act, safety: Reproductive Health (medical termination of pregnancy).
Q241 – First sign of foetus (heart): Human Reproduction (embryonic development).
Q242 – Primary spermatocyte chromosomes: Human Reproduction (spermatogenesis).
Q243 – Spermiogenesis: Human Reproduction (gametogenesis).
Q244 – Progesterone and endometrium: Human Reproduction (menstrual cycle, luteal phase).
Q245 – Nucleus in sperm head: Human Reproduction (sperm structure).

Genetics and Evolution (Unit VII)

Q207 – Pedigree, autosomal dominant genotype: Principles of Inheritance and Variation (pedigree, Mendelian disorders).
Q208 – HBB gene on chromosome 11: Principles of Inheritance and Variation (genetic disorders – thalassemia).
Q209 – Polygenic inheritance and pleiotropy: Principles of Inheritance and Variation (polygenic inheritance, pleiotropy, mutation).
Q210 – Thalassemia, Klinefelter, Turner, colour blindness: Principles of Inheritance and Variation (Mendelian and chromosomal disorders).
Q211 – RNA lability due to 2'-OH: Molecular Basis of Inheritance (RNA structure, properties of genetic material).
Q212 – Polynucleotide phosphorylase: Molecular Basis of Inheritance (tools/enzymes related to RNA, transcription vs template‑independent synthesis).
Q213 – Thiamine not DNA component: Molecular Basis of Inheritance (DNA structure, bases).
Q214 – Jeffreys, Miescher, Monod, Miller: Molecular Basis of Inheritance & Evolution (DNA fingerprinting, nuclein, transcriptional regulation, origin of life).
Q215 – Homologous organs definition: Evolution (comparative anatomy, homologous organs).
Q216 – Order: Ramapithecus → Homo habilis → H. erectus → Neanderthal → H. sapiens: Evolution (human evolution, geological time).
Q218 – Divergent, convergent, anthropogenic evolution, adaptive radiation: Evolution (evidences, adaptive radiation, natural selection, anthropogenic evolution).

Biology and Human Welfare (Unit VIII)

Q219 – Haemozoin in malaria: Human Health and Disease (malaria, pathogen effects).
Q220 – IgA in colostrum: Human Health and Disease (immunity – passive immunity in newborn).
Q221 – Ascariasis, Entamoeba, Plasmodium life cycle: Human Health and Disease (common human diseases – typhoid, malaria, amoebiasis, ascariasis, filariasis).
Q222 – Pneumonia, typhoid, ringworm, elephantiasis pathogens: Human Health and Disease (bacterial, fungal, helminth diseases).
Q223 – Vitamin B2 increase in curd: Microbes in Human Welfare (household products, improved nutrition).
Q224 – Azospirillum, phosphorus absorption, Oscillatoria, ethanol: Microbes in Human Welfare (biofertilisers, mycorrhizae, industrial products).
Q225 – Aspergillus, Acetobacter, Clostridium, Lactobacillus acids: Microbes in Human Welfare (industrial products – acids, fermentation).

Biotechnology (Unit IX)

Q226 – Products from biotechnology vs Basmati rice: Biotechnology & its Applications (GMOs, DNA vaccines, transgenic animals, conventional breeding).
Q227 – Restriction sites on pBR322: Biotechnology: Principles and Processes (cloning vectors, restriction enzymes).
Q228 – Steps in rDNA technology: Biotechnology: Principles and Processes (isolation, ligation, transformation, bioreactors, downstream processing).
Q230 – Transgenic models for diseases: Biotechnology and its Applications (transgenic animals for human diseases).
Q231 – Transposons as jumping genes: Biotechnology/Molecular Basis (mobile genetic elements, tools).
Q232 – Bt bacterium and Bt toxin properties: Biotechnology and its Applications (Bt in agriculture, GM crops).
Q233 – C‑peptide, α1‑antitrypsin, cry1Ab, α‑lactalbumin: Biotechnology and its Applications (insulin production, gene therapy products, GM crops, transgenic cow Rosie).
Q240 – Bioreactor features, upstream vs downstream: Biotechnology: Principles and Processes (bioreactors, continuous culture, downstream processing).

Ecology and Environment (Unit X)

Q217 – Decomposition steps (fecal matter, leaching, humification, mineralisation): Ecosystem (decomposition).
Q234 – DFC as major conduit in forest: Ecosystem (detritus food chain, energy flow).
Q235 – Ecological pyramids, saprophytes, inverted pyramids: Ecosystem (ecological pyramids of number, biomass, energy).
Q236 – Gross primary production: Ecosystem (productivity – GPP vs NPP).
Q237 – Reasons for high tropical diversity, incorrect option: Biodiversity and Conservation (patterns and causes of biodiversity).
Q238 – Deserts, rain forests, mangroves etc.: Biodiversity and Conservation (ecological diversity).
Q239 – Causes of species loss (alien species, removal, fragmentation): Biodiversity and Conservation (causes of biodiversity loss).
Q229 – Co‑evolution not a cause of loss: Biodiversity and Conservation (causes vs neutral processes).
Q246 – Predators maintain diversity: Organisms and Populations (population interactions – predation).
Q247 – Sea anemone–clown fish commensalism: Organisms and Populations (population interactions – commensalism).
Q248 – Cuckoo not typical parasite: Organisms and Populations (parasitism vs brood parasitism).
Q249 – Competition reduces fitness: Organisms and Populations (competition definition, fitness).
Q250 – J‑shaped vs logistic growth: Organisms and Populations (exponential vs logistic growth, realistic models).

Pattern across segments (Unit focus)

Approximate distribution across the 50 questions:

Unit VI Reproduction: ~11 questions (flowering plant reproduction + human reproduction + reproductive health).
Unit VII Genetics & Evolution: ~11–12 questions (inheritance, molecular basis, evolution).
Unit VIII Biology & Human Welfare: ~7 questions (diseases, immunity, microbes in welfare).
Unit IX Biotechnology: ~9–10 questions (principles, tools, applications, bioreactors).
Unit X Ecology & Environment: ~11–12 questions (populations, ecosystem,

Below is the classification of Q201–Q250 by question type, using your requested categories.

Question types used

Regular MCQ (single fact/concept, choose 1 option)
Arrange/Sequence type
Match type (List‑I/List‑II)
Correct/Incorrect statements type (select combination)
Common‑data/passage based (two or more questions on a shared stem)

Regular MCQs (single best answer)

Q201, Q204, Q207, Q208, Q211, Q212, Q213, Q215, Q216, Q219, Q220, Q223, Q225, Q226, Q227, Q229, Q230, Q231, Q234, Q235, Q236, Q237, Q238, Q241, Q242, Q243, Q244, Q245, Q247, Q248, Q249, Q250.

These directly ask for a definition, example, or correct term/organism/process with four options.

Arrange / Sequence type

Q202 – Arrange stages of megasporogenesis in chronological order.
Q216 – Arrange human evolutionary forms in order of origin.
Q217 – Correct sequence of decomposition steps.
Q228 – Correct sequence of steps in rDNA technology.

Each gives labelled items (A–D/E) and asks for the correct chronological/process order.

Match type (List‑I/List‑II)

Q203 – Types of pollination vs descriptions.
Q210 – Disorders vs karyotype/type.
Q214 – Scientists vs contributions.
Q218 – Evolutionary processes vs examples.
Q222 – Human diseases vs causal organisms.
Q224 – Functions vs organisms (biofertilisers, etc.).
Q225 – Microbes vs acids.
Q233 – Gene/product vs usage/disease.

All are classic List‑I/List‑II matching with options giving mapped pairs.

Correct / Incorrect statements type

Q205 – “Incorrect statement regarding oral contraceptives.”
Q206 – “Correct statements with respect to MTP Act, 2017 (choose combination).”
Q209 – “Correct statements” about inheritance concepts.
Q221 – “Identify the incorrect statements” (combination).
Q232 – “Identify the incorrect statements about Bt (choose combination).”
Q235 – “Wrong statement about ecological pyramids.”
Q239 – “Increase in species loss due to” (choose correct combination).
Q240 – “Correct statements regarding continuous culture systems” (combination).
Q246 – Correct statement about species interaction (from a passage stem).

All use multiple labelled statements A–E and ask for “correct” or “incorrect” combinations, or a single correct statement from four alternatives.

Common‑data / passage basedare not there

Q246 & Q247 share a passage/context about species interactions and examples (Q246 explicitly says “from passage”), with Q247 asking for commensalism example from the same context.

This forms at least one common‑data set of two questions; the rest of the paper’s Q201–Q245 and Q248–Q250 are stand‑alone, not tied to shared data in the provided extract.

CUET Chemistry Exam Analysis 2025

Classification (Non-Overlapping)

Question Type	Question Numbers	Count
Passage-Based (Comprehension)	Q41–Q45, Q46–Q50	10
Match-the-Following	Q33, Q34, Q35, Q36, Q37	5
Arrange/Ordering Type	Q14, Q19, Q23, Q25, Q26	5
Correct Statement Combination Type	Q3, Q28, Q29, Q30, Q31	5
Regular Standalone MCQs	Remaining: Q1,2,4,5,6,7,8,9,10,11,12,13,15,16,17,18,20,21,22,24,27,32,38,39,40	25

✅Total = 10 + 5 + 5 + 5 + 25 = 50

🔹 Unit I: Solutions

(Syllabus: Types of solutions, Raoult’s law, colligative properties, osmotic pressure, Van’t Hoff factor, abnormal molar mass)

Q No.	Subtopic	Question Summary	Type
1	Types of solutions	Camphor in N₂ gas – solid-gas solution	Regular MCQ
3	Osmotic pressure	Statements on osmotic pressure, reverse osmosis, edema	Correct Statement Type
4	Raoult’s law, vapour pressure, boiling	Mole % in binary solution boiling at 700 mm Hg	Regular MCQ
10	Van’t Hoff factor, association	Association: X ⇌ (X)ₙ, i = 0.80, α = 0.3 → find n	Regular MCQ

✅Total: 4 questions

🔹 Unit II: Electrochemistry

(Syllabus: Fuel cells, Faraday’s laws, EMF, galvanic cells, conductivity, etc.)

Q No.	Subtopic	Question Summary	Type
7	Extraction of Al, cryolite	Role of cryolite in Al₂O₃ electrolysis	Regular MCQ
41–45	Fuel cells, Faraday’s laws	H₂–O₂ fuel cell; moles of H₂, electrons, charge, Ag deposited, Apollo mission	Passage-Based (5 Qs)

✅Total: 6 questions

Note: Q7 also links to metallurgy but is electrochemically relevant (electrolytic cell).

🔹 Unit III: Chemical Kinetics

(Syllabus: Order, rate law, half-life, rate dependence, Arrhenius, etc.)

Q No.	Subtopic	Question Summary	Type
5	Rate dependence on concentration	Rate change when volume doubled (order = 3)	Regular MCQ
8	Order of reaction	k = 2 × 10⁻² s⁻¹→ first order	Regular MCQ
9	Order vs molecularity	Order = molecularity of slowest step	Regular MCQ
16	First-order half-life	t₇₅% = 32 min → t₅₀%?	Regular MCQ

✅Total: 4 questions

🔹 Unit IV: d- and f-Block Elements

(Syllabus: Trends, oxidation states, magnetic properties, lanthanoid contraction, actinoids)

Q No.	Subtopic	Question Summary	Type
46–50	General properties, ionization, colour, oxidation states, actinoids vs lanthanoids	Based on transition & f-block periodic trends	Passage-Based (5 Qs)
17	Magnetic properties	Diamagnetic compound (Cd²⁺ d¹⁰)	Regular MCQ
48	Colour of ions	VOCl₂ (VO²⁺: blue), FeCl₂ (Fe²⁺: green) – but both pale? (VO²⁺ = blue, Fe²⁺ = green → not same); correct pair likely VO²⁺& Fe²⁺ in some contexts	Passage-Based (Q48)
49	Highest oxidation state	Mn (+7 in KMnO₄) vs Cr (+6)	Passage-Based

✅Total: 7 questions

Includes Q17 (standalone) + Q46–50 (passage)

🔹 Unit V: Coordination Compounds

(Syllabus: Nomenclature, CFT, VBT, magnetic properties, Werner’s theory, isomerism)

Q No.	Subtopic	Question Summary	Type
11	Oxidation state	Co in [Co(en)₃]₂(SO₄)₃ → +3	Regular MCQ
13	Ionisation in solution	[Cr(NH₃)₆]Cl₃ → 4 ions	Regular MCQ
18	Magnetic moment, CFT	[Mn(CN)₆]⁴⁻→ low spin d⁵→ 1 unpaired →μ = 1.73 BM	Regular MCQ

✅Total: 3 questions

🔹 Unit VI: Haloalkanes and Haloarenes

(Syllabus: SN1/SN2, directive influence, reactions, environmental effects)

Q No.	Subtopic	Question Summary	Type
29	Ether cleavage, SN1 mechanism	(CH₃)₃C–O–CH₃ + HI → (CH₃)₃CI + CH₃OH (not reverse)	Correct Statement Type
31	Directive influence of Cl	Cl: –I effect, +R effect → o/p director despite e⁻ withdrawing	Correct Statement Type
35	Named reactions	Swarts, Finkelstein, Sandmeyer, Wurtz	Match-the-Following
40	SN2 reactivity order	1° > 2° > 3°; (CH₃)₂CHCH₂Br = 1° (less hindered)	Regular MCQ

✅Total: 4 questions

🔹 Unit VII: Alcohols, Phenols and Ethers

(Syllabus: Preparation, properties, dehydration, electrophilic substitution)

Q No.	Subtopic	Question Summary	Type
20	Phenol → benzene → toluene → benzoic acid → nitration	Product = m-nitrobenzoic acid	Regular MCQ
22	Nitration of aniline	At 298 K → o-nitroaniline (47%)	Regular MCQ
30	Aniline & Friedel-Crafts	Does not undergo due to salt formation with AlCl₃	Correct Statement Type
34	Reagents	Lucas, Jones, Tollen’s, Fehling’s	Match-the-Following (includes alcohol oxidation)

✅Total: 4 questions

Note: Q34 spans multiple units but Lucas & Jones reagents are for alcohols (Unit VII).

🔹 Unit VIII: Aldehydes, Ketones and Carboxylic Acids

(Syllabus: Nucleophilic addition, HVZ, acidity, Cannizzaro, named reactions)

Q No.	Subtopic	Question Summary	Type
24	HVZ reaction	Only α-H containing acids → R–CH₂–COOH	Regular MCQ
25	Acidic strength	Effect of –I group: NO₂CH₂COOH > FCH₂COOH >ClCH₂COOH> HCOOH	Arrange Type
26	Nucleophilic addition reactivity	Aldehyde > ketone; EWG ↑ reactivity, EDG ↓	Arrange Type
27	Gatterman-Koch reaction	Electrophile = HCO⁺	Regular MCQ
28	Cannizzaro reaction	Formaldehyde: no α-H → undergoes Cannizzaro	Correct Statement Type
32	Étard reaction	Toluene → benzaldehyde	Regular MCQ
39	Acid strength (pKa)	FCH₂COOH >ClCH₂COOH>BrCH₂COOH> HCOOH	Regular MCQ

✅Total: 7 questions

🔹 Unit IX: Amines

(Syllabus: Basicity, diazonium salts, preparation, identification)

Q No.	Subtopic	Question Summary	Type
23	Basic strength of amines	Aliphatic > aromatic; 2° > 3° > 1° in gas phase (aqueous: 2° > 1° > 3°)	Arrange Type

✅Total: 1 question

Note: Q22 & Q30 also involve aniline (aromatic amine), but classified under Unit VII due to reaction context (electrophilic substitution). Strictly, Q23 is core amine basicity.

🔹 Unit X: Biomolecules

(Syllabus: Proteins, vitamins, hormones, carbohydrates, nucleic acids)

Q No.	Subtopic	Question Summary	Type
12	Dipeptide (Gly-Ala)	Peptide bond formation	Regular MCQ
33	Protein structure	Primary, secondary, tertiary, quaternary	Match-the-Following
36	Vitamins & hormones	Vitamin A → Xerophthalmia; Thiamine → Beri-Beri; Glucocorticoids → Addison’s; Estradiol → menstrual cycle	Match-the-Following
38	Analgesics vs antacids	Ranitidine = antacid (not analgesic)	Regular MCQ

✅Total: 4 questions

🔹 Surface Chemistry / General Chemistry (Not Explicitly in Syllabus but Tested)

(Note: Colloids & protective colloids are not listed in official CUET syllabus but appeared)

Q No.	Topic	Question Summary	Type
21	Gold number, protective colloids	Lower gold number = better protective colloid → A (0.005–0.01)	Regular MCQ

⚠️Note: "Colloids" is not part of the provided CUET Chemistry syllabus (Units I–X). This appears to be an out-of-syllabus question or from deleted NCERT content.

✅Total: 1 question (out of syllabus)

🔹 Unallocated / Ambiguous

Q No.	Topic	Note
2	Organic sequence	Likely from haloalkanes/Grignard (Unit VI), but vague
6	Sigma bonds in P₄O₁₀	p-Block (Group 15) – NOT in CUET syllabus!
14	Moles & molecules	Basic stoichiometry – foundational
15	FCC radius	Solid state – NOT in CUET syllabus!
37	Hydration of alkenes	Alkenes → Alcohols – part of Unit VII (Alcohols: methods of preparation)

✅Q2, Q14, Q37 → assigned to relevant units
❌Q6 (P₄O₁₀), Q15 (FCC Cu) → not in CUET syllabus (no Solid State or p-Block beyond syllabus scope)

📊 Final Topic-wise Summary

CUET Unit	Number of Questions	Includes
Unit I: Solutions	4	Q1, Q3, Q4, Q10
Unit II: Electrochemistry	6	Q7, Q41–45
Unit III: Chemical Kinetics	4	Q5, Q8, Q9, Q16
Unit IV: d- and f-Block	7	Q17, Q46–50
Unit V: Coordination Compounds	3	Q11, Q13, Q18
Unit VI: Haloalkanes & Haloarenes	4	Q29, Q31, Q35, Q40
Unit VII: Alcohols, Phenols, Ethers	4	Q20, Q22, Q30, Q34
Unit VIII: Carbonyls & Acids	7	Q24, Q25, Q26, Q27, Q28, Q32, Q39
Unit IX: Amines	1	Q23
Unit X: Biomolecules	4	Q12, Q33, Q36, Q38
Out of Syllabus	3	Q6 (p-Block), Q15 (Solid State), Q21 (Colloids)
Stoichiometry (Basic)	1	Q14 (linked to Unit I)
TOTAL	50	✅