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NEET 2011 Mains

Browse the complete Botany, Chemistry, Physics, and Zoology question set from the NEET 2011 Mains paper, question by question. Each question shows a quick preview so you can jump straight to the topic or subject you want to revise. Click through to attempt the full question in practice mode, or head back to the paper-wise list to download the entire paper as a PDF.

This paper has 120 questions in total - 38 easy (32%), 65 moderate (54%) and 17 tough (14%). That's a fairly typical mix for this exam. By subject: Physics 40% easy, 57% moderate, 3% tough; Chemistry 43% easy, 33% moderate, 23% tough; Zoology 24% easy, 64% moderate, 12% tough; Botany 19% easy, 63% moderate, 19% tough.

Botany questions were spread across 14 chapters, with Morphology of Flowering Plants (4), Cell - The Unit of Life (3), and Ecosystem (3) carrying the most weight. Chemistry questions were spread across 21 chapters, with Chemical Kinetics (3), Aldehydes and Ketones (2), and Biomolecules (2) carrying the most weight. Physics questions were spread across 20 chapters, with Current Electricity (3), Semiconductors (3), and Alternating Current (2) carrying the most weight. Zoology questions were spread across 16 chapters, with Biotechnology and Its Applications (5), Human Health and Diseases (4), and Structural Organisation in Animals (4) carrying the most weight.

Botany

  1. 1Which one of the following aspects is an exclusive characteristic of living things?2011 (Mains)What is Living
  2. 2Consider the following four statements whether they are correct of wrong. I. The sporophyte in liverworts is more elaborate than that in mos2011 (Mains)Plant Life Cycles
  3. 3Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because2011 (Mains)Gymnosperms
  4. 4Examine the figure below and select the right option giving all the four parts (A, B, C and (D) correctly identified. \( {array}{|l|l|} & {A2011 (Mains)Pteridophytes
  5. 5Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct?2011 (Mains)Phylum Chordata
  6. 6The figure shows four animals . Select the correct answer with respect to a common characteristics of two these animals.2011 (Mains)Basis of Classification
  7. 7Which one of the following pairs is wrongly matched while the remaining three are correct?2011 (Mains)The Stem
  8. 8Which one of the following diagrams represents the placentation in Dianthus?2011 (Mains)The Flower
  9. 9Whorled, simple leaves with reticulate venation are present in2011 (Mains)The Leaf
  10. 10Sweet potato is homolgous to2011 (Mains)The Stem
  11. 11Some vascular bundles are described as open because these2011 (Mains)Introduction
  12. 12At metaphase, chromosomes are attached to the spindle fibres by their2011 (Mains)M-phase (Mitotic Phase)
  13. 13The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matche2011 (Mains)Cell Organelles
  14. 14In mitochondria, protons accumulate in the2011 (Mains)Cell Organelles
  15. 15Which one of the following is not considered as a part of the endomembrane system?2011 (Mains)Cell Organelles
  16. 16Function of companion cells is2011 (Mains)Transpiration
  17. 17Guttation is the result of2011 (Mains)Plant Water Relations
  18. 18Which one of the following is not an essential mineral elements for plants while the remaining three are?2011 (Mains)Role of Micro and Macronutrients
  19. 19In Kranz anatomy, the bundle sheath cells have2011 (Mains)Mechanism of Photosynthesis
  20. 20Which one of the following is essential for photolysis of water?2011 (Mains)Role of Micro and Macronutrients
  21. 21In angiosperms, functional megaspore develops into2011 (Mains)Sexual Reproduction
  22. 22What is common between vegetative reproduction and apomixis?2011 (Mains)Sexual Reproduction
  23. 23Good ozone is found in the2011 (Mains)Pollution
  24. 24Biodiversity of a geographical region represents2011 (Mains)Levels of Biodiversity
  25. 25Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?2011 (Mains)Functions of Ecosystem
  26. 26Both, hydrarch and xerarch successions lead to2011 (Mains)Ecological Succession
  27. 27The breakdown of detritus into smaller particles by earthworm is a process called2011 (Mains)Functions of Ecosystem

Chemistry

  1. 1Which has the maximum number of molecules among the following?2011 (Mains)Mole concept
  2. 2According to the Bohr theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon?2011 (Mains)Bohr's model
  3. 3What is the value of electron gain enthalpy of if of ?2011 (Mains)Periodic properties
  4. 4Which of the following oxide is amphoteric?2011 (Mains)Periodic properties
  5. 5Which of the following structures is the most preferred and hence of lowest energy for ?2011 (Mains)Covalent and Co-ordinate Bonding
  6. 6The pairs of species of oxygen and their magnetic behaviours are noted below. Which of the following presents the correct description?2011 (Mains)Molecular Orbital Theory
  7. 7A bubble of air is underwater at temperature and the pressure . If the bubble rises to the surface where the temperature is and the pressure2011 (Mains)Gas laws and Ideal Gas Equation
  8. 8Consider the following processes For will be2011 (Mains)Laws of Thermochemistry and Enthalpy Change
  9. 9In qualitative analysis, the metals of group I can be separated from other ions by precipitating them as chloride salts. A solution initiall2011 (Mains)Solubility
  10. 10A solution contains and ions. This solution was treated with iodine at . for is and for . The favourable redox reaction is2011 (Mains)Balancing of redox reactions
  11. 11Match list I with list II for the compositions of substances and select the correct answer using the code given below the lists.2011 (Mains)Compounds of Alkaline Earth Metals
  12. 12Which of the following statements is incorrect?2011 (Mains)Aluminium and Its Compounds
  13. 13The IUPAC name of the following compound is2011 (Mains)IUPAC Nomenclature
  14. 14Which of the following compound is most basic?2011 (Mains)Electron displacement effects
  15. 15A solid compound has structure. If the radius of the cation is , the radius of the anion ( ) will be2011 (Mains)Cubic system
  16. 16A 0.1 molal aqueous solution of a weak acid is ionised. If for water is , the freezing point of the solution will be2011 (Mains)Colligative Properties and Abnormal Molecular Masses
  17. 17of an aqueous solution of a protein contains its . The osmotic pressure of this solution at is found to be bar. The molar mass of protein wi2011 (Mains)Colligative Properties and Abnormal Molecular Masses
  18. 18The half-life of a substance in a certain enzyme-catalysed reaction is . The time required for the concentration of the substance to fall fr2011 (Mains)Integrated rate laws
  19. 19The rate of reaction can be written in three ways The relationship between and and between and are2011 (Mains)Rate of reaction
  20. 20The unit of rate constant for a zero order reaction is2011 (Mains)Integrated rate laws
  21. 21The following reactions take place in the blast furnace in the preparation of impure iron. Identify the reaction pertaining to the formation2011 (Mains)Flux and Refractory materials
  22. 22Which of the following carbonyls will have the strongest bond?2011 (Mains)Carbonyl Compounds
  23. 23Which of the following complex compounds will exhibit highest paramagnetic behaviour? (At. no. : , )2011 (Mains)Werner's theory and Valence Bond Theory
  24. 24Which of the following compounds undergoes nucleophilic substitution reaction most easily?2011 (Mains)Preparation and Properties of Monohalides
  25. 25Consider the reactions (i) (ii) The mechanisms of reactions (i) and (ii) are respectively2011 (Mains)Reactions of Alcohols
  26. 26The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds2011 (Mains)Chemical reactions for aldehydes and ketones
  27. 27Match the compounds given in list I with list II and select the suitable option using the code given belows.2011 (Mains)Chemical reactions for aldehydes and ketones
  28. 28An organic compound ' ' on treatment with gives ' ' which on heating gives ' ', ' ' when treated with in the presence of produces ethylamine2011 (Mains)Preparation and Properties of Amines
  29. 29Which of the following is not a fat soluble vitamin?2011 (Mains)Vitamins
  30. 30Which of the statements about 'Denaturation' given below are correct? Statements (A) Denaturation of proteins causes loss of secondary and t2011 (Mains)Proteins

Physics

  1. 1In the following figure, the diodes which are forward biased, are A. B. C. D.2011 (Mains)Diodes
  2. 2A galvanometer of resistance, is shunted by a resistance . To keep the main current in the circuit unchanged, the resistance to be put in se2011 (Mains)Electric Instruments
  3. 3The threshold frequency for a photo-sensitive metal is . If light of frequency is incident on this metal, the cut-off voltage for the photo-2011 (Mains)Photoelectric Effect
  4. 4A conveyor belt is moving at a constant speed of . A box is gently dropped on it. The coefficient of friction between them is . The distance2011 (Mains)Frictional force
  5. 5Out of the following which one is not a possible energy for a photon to be emitted by hydrogen atom according to Bohr's atomic model?2011 (Mains)Atomic Spectrum
  6. 6A square loop, carrying a steady current , is placed in a horizontal plane near a long straight conductor carrying a steady current at a dis2011 (Mains)Force and Torque on Current Carrying Conductor
  7. 7The rms value of potential difference shown in the figure is2011 (Mains)Alternating Current, Voltage and Power
  8. 8A short bar magnet of magnetic moment is place in a uniform magnetic field of . The magnet is stable equilibrium when the potential energy i2011 (Mains)Magnetism and Properties of Magnet
  9. 9Two particle are oscillating along two close parallel straight lines side by side, with the same frequency and amplitudes. They pass each ot2011 (Mains)Simple Harmonic Motion
  10. 10A thermocouple of negligible resistance produces an emf of in the linear range of temperature. A galvanometer of resistance whose sensitivit2011 (Mains)Electric Instruments
  11. 11A coil has resistance and inductive reactance at frequency. If an source of , is connected across the coil, the current in the coil will be2011 (Mains)AC Circuits
  12. 12A particle of mass is situated at the centre of spherical shell of mass and radius . The magnitude of the gravitational potential at a point2011 (Mains)Gravitational potential and Potential Energy
  13. 13Pure Si at has equal number of electron and hole concentrations of . Doping by indium increases to . The doped semiconductor is of2011 (Mains)Semiconductors
  14. 14Charge is uniformly spread on a thin ring of radius . The ring rotates about its axis with a uniform frequency . The magnitude of magnetic i2011 (Mains)Magnetic Field
  15. 15A zener diode, having breakdown voltage equal to , is used in a voltage regulator circuit shown in figure. The current through the diode is2011 (Mains)Diodes
  16. 16A particle covers half of its total distance with speed and the rest half distance with speed . Its average speed during the complete journe2011 (Mains)Rest and Motion
  17. 17The electric potential at any point , all in metres in space is given by volt. The electric field at the point in volt/metre is2011 (Mains)Electric Potential and Potential Energy
  18. 18Two identical piano wires kept under the same tension have a fundamental frequency of . The fractional increase in the tension of one of the2011 (Mains)Beats
  19. 19Three charges, each , are placed at the corners of an isosceles triangle of sides and and are the mid points of and . The work done in takin2011 (Mains)Electric Potential and Potential Energy
  20. 20A particle of mass is thrown upwards from the surface of the earth, with a velocity . The mass and the radius of the earth are, respectively2011 (Mains)Gravitational potential and Potential Energy
  21. 21A small mass attached to a string rotates on frictionless table top as shown. If the tension is the string is increased by pulling the strin2011 (Mains)Angular momentum and Angular impulse
  22. 22Two radioactive nuclei and , in a given sample decay into a stable nucleous . At time , number of species are and that of are . Half-life of2011 (Mains)Radioactivity
  23. 23A mass of diatomic gas at a pressure of is compressed adiabatically so that its temperature rise from to . The pressure of the gas is final 2011 (Mains)Thermodynamic Processes
  24. 24In the circuit shown in the figure, if potential at point is taken to be zero, the potential at point is2011 (Mains)Kirchoffs Laws
  25. 25A mass moving horizontally (along the -axis) with velocity collides and sticks to mass of moving vertically upward (along the -axis) with ve2011 (Mains)momentum
  26. 26A conversing beam of rays is incident on a diverging lens. Having passed though the lens the rays intersect at a point from the lens on the 2011 (Mains)Lens Formula, Refraction of light from curved surface
  27. 27The density of material in CGS system of units is . In a system of units in which unit of lengths is and unit of mass is , the value of dens2011 (Mains)Units
  28. 28A thin prism of angle made of glass of refractive index is combined with another prism of glass of refractive index . The combination of the2011 (Mains)Prism and Dispersion of Light
  29. 29An electron in the hydrogen atom jumps from excited state to the ground state. The wavelength so emitted illuminates a photo-sensitive mater2011 (Mains)Photoelectric Effect
  30. 30A projectile is fired at an angle of with the horizontal. Elevation angle of the projectile at its highest point as seen from the point of p2011 (Mains)Projectile motion

Zoology

  1. 1The cells lining the blood vessels belong to the category of2011 (Mains)Epithelial Tissue
  2. 2Frogs differ from humans in possessing2011 (Mains)Frog
  3. 3Which one of the following structures in pheretima is correctly matched with its function?2011 (Mains)Cockroach
  4. 4The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone2011 (Mains)Pineal Body
  5. 5One of the constituents of the pancreatic juice while poured into the duodenum in humans, is2011 (Mains)Pancreas
  6. 6Which one of the following correctly represents the normal adult human dental formula?2011 (Mains)Teeth
  7. 7Given below is the ECG of a normal human. Which one of its components is human, which one of its components is correctly interpreted below.2011 (Mains)Electrocardiograph
  8. 8Ureters act as urogenital ducts in2011 (Mains)Mammalian Urinary System
  9. 9Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?2011 (Mains)Human Respiratory System
  10. 10Bulk of carbon dioxide released from body tissues into the blood is present as2011 (Mains)Blood
  11. 11Three of the following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pai2011 (Mains)Locomotion
  12. 12The type of muscles present in our2011 (Mains)Movement
  13. 13The technique called gamete intra fallopian transfer (GIFT) is recommended for those females2011 (Mains)Infertility
  14. 14What happens during fertilization in humans after many sperms reach close to the ovum?2011 (Mains)Mammalian Reproductive System
  15. 15About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH surge) normally occurs?2011 (Mains)Female Reproductive System
  16. 16The unequivocal proof of DNA as the genetic material came from the studies on a2011 (Mains)The Search for Genetic Material
  17. 17In history of biology, human genome project led to the development of2011 (Mains)Human Genome Project
  18. 18Test cross in plants of in Drosophila involves crossing2011 (Mains)Test Cross
  19. 19Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child?2011 (Mains)Sex Determination in Humans
  20. 20The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of2011 (Mains)Common Health Disease
  21. 21Which one of the following option gives the correct matching of a disease with its causative organism and mode of infection?2011 (Mains)Common Health Disease
  22. 22Common cold is not cured by antibiotics because it is2011 (Mains)Common Health Disease
  23. 23Select the correct statements with respect to diseases and immunisation2011 (Mains)Specific Immunity
  24. 24Bacillus thuringiensis forms protein crystals, which contain insecticidal protein2011 (Mains)Genetic Modified Crops
  25. 25Read the following statement having two blanks ( 1 and 2 ). A drug used for (1) patients is obtained from a species of the organism (2) ....2011 (Mains)Application in Medicine
  26. 26Silencing of mRNA has been used in producing transgenic plants resistant to2011 (Mains)Application in Agriculture
  27. 27Consider the following statements (I-IV) about organic farming. I. Utilizes genetically modified crops like cotton II. Uses only naturally p2011 (Mains)Application in Agriculture
  28. 28Which one of the following techniques made it possible to genetically engineer living organism?2011 (Mains)Application in Medicine
  29. 29Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?2011 (Mains)Products
  30. 30Read the following four statements (I-IV) about certain mistakes in two of them I. the first transgenic buffalo, Rosie produced milk which w2011 (Mains)Tools of Recombinant DNA Technology
  31. 31Consider the following four statements (I-IV) related to the common frog Rana tigrina, and select the correct option stating which ones are 2011 (Mains)Frog
  32. 32Consider the following statements (I)-(IV) each with one or two blanks. I. Bears go into (1) during winter to ......(2) ...... cold weather.2011 (Mains)Response to Abiotic Factors
  33. 33The logistic population growth is expressed by the equation2011 (Mains)Populations

Frequently Asked Questions

1.How many questions are in the NEET 2011 Mains paper?

This paper has 120 questions in total - 27 from Botany, 30 from Chemistry, 30 from Physics, and 33 from Zoology.

2.Can I practise questions from just one subject?

Yes. Use the Botany, Chemistry, Physics, and Zoology tabs at the top of the page to jump directly to that subject's question set within this paper.

3.Where can I find the Screening paper for the same year?

The NEET 2011 Screening paper is listed separately - you can switch to it from the "NEET Paper Wise PYQs" panel, under NEET 2011.

4.How is the NEET 2011 Mains paper structured?

The NEET 2011 Mains paper on MARKS has 120 questions, organised by subject:

  • Botany: 27 questions - 27 single-correct.
  • Chemistry: 30 questions - 30 single-correct.
  • Physics: 30 questions - 30 single-correct.
  • Zoology: 33 questions - 33 single-correct.
5.How difficult is the NEET 2011 Mains paper?

Each question on MARKS carries a difficulty rating. Of the 120 rated questions in this paper, 38 (32%) are easy, 65 (54%) are medium and 17 (14%) are hard. Subject wise:

  • Botany: 5 easy, 17 medium, 5 hard
  • Chemistry: 13 easy, 10 medium, 7 hard
  • Physics: 12 easy, 17 medium, 1 hard
  • Zoology: 8 easy, 21 medium, 4 hard
6.Which chapters were asked the most in the NEET 2011 Mains paper?

The chapters with the most questions in each subject were:

  • Botany: Morphology of Flowering Plants (4), Cell - The Unit of Life (3), and Ecosystem (3).
  • Chemistry: Chemical Kinetics (3), Aldehydes and Ketones (2), and Biomolecules (2).
  • Physics: Current Electricity (3), Semiconductors (3), and Alternating Current (2).
  • Zoology: Biotechnology and Its Applications (5), Human Health and Diseases (4), and Structural Organisation in Animals (4).
7.Are there any out-of-syllabus questions in the NEET 2011 Mains paper?

Yes. 17 of the 120 questions in this paper are marked on MARKS as outside the current syllabus. You can still practise them for the concept, but they are a lower priority if you are short on time.

8.Where can I find the solutions for the NEET 2011 Mains paper?

Open any question on this page. Its page shows the correct answer and, where one is available, the worked solution. A downloadable PDF of the whole paper is coming soon.

9.How should I use the NEET 2011 Mains paper to check my preparation?

Set a timer, attempt the 120 questions as you would in the exam, and only then open the answers. Note which subjects and chapters cost you the most marks, and revise those first using the chapter-wise practice for NEET. Repeating this with other papers shows whether the same weak spots keep coming back.

10.Will the NEET 2011 Mains paper help me prepare for NEET 2027?

Yes. Every past paper shows the question styles and topics NEET has asked before, and a solved paper gives you a realistic benchmark for speed and accuracy. Use it along with the other papers to spot the chapters that keep returning.