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AIIMS 2011

Browse the complete Botany, Chemistry, Physics, and Zoology question set from the AIIMS 2011 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 180 questions in total - 115 easy (64%), 33 moderate (18%) and 32 tough (18%). That's an easier-than-usual mix for this exam - aim to clear it quickly and save time for the harder papers. By subject: Physics 65% easy, 22% moderate, 13% tough; Chemistry 62% easy, 32% moderate, 7% tough; Zoology 64% easy, 4% moderate, 32% tough; Botany 66% easy, 0% moderate, 34% tough.

Botany questions were spread across 16 chapters, with Environmental Issues (4), Transport in Plants (4), and Plant - Growth and Development (3) carrying the most weight. Chemistry questions were spread across 25 chapters, with General Organic Chemistry (7), Chemical Bonding and Molecular Structure (5), and Redox Reactions (5) carrying the most weight. Physics questions were spread across 25 chapters, with Nuclear Physics (9), Ray Optics (6), and Magnetic Effects of Current (5) carrying the most weight. Zoology questions were spread across 15 chapters, with Body Fluids and Circulation (4), Structural Organisation in Animals (3), and Biotechnology and Its Applications (2) carrying the most weight.

Botany

  1. 1Assertion : Enzymes lower down the activation energy of the reactant molecule to make its transition into product easier. Reason : Enzymes a2011Enzymes
  2. 2Assertion : Glycerides are important nutrients for body. Reason : Glycerides are hydrolysed into glycerol and fatty acids which are further 2011Lipids
  3. 3Which of the following is not a characteristic of meiosis?2011Meiosis
  4. 4In active transport, carrier proteins are used, which use energy in the form of ATP, to2011Transport of Mineral Nutrients
  5. 5In a living tissue, what would be the amount of water?2011Imbibition
  6. 6Assertion : Water that enters into a plant cell through diffusion makes it turgid. Reason : Entry of water into the cell through diffusion d2011Means of Transport
  7. 7Assertion : Movement of materials inside phloem is bidirectional i.e. it can be both upwards or downwards. Reason : Movement of molecules in2011Long Distance Transport of Water
  8. 8Cell theory was proposed by2011Cell Membranes
  9. 9PS-II occurs only in2011Cell Organelles
  10. 10Identify the given figures and .2011The Flower
  11. 11Assertion : A mangrove tree growing in marshy place has pneumatophores. Reason : Pneumatophores help in better anchorage to marshy soil.2011The Root
  12. 12Given figure shows2011Secondary Growth
  13. 13Kingdom Animalia is characterised by2011Basis of Classification
  14. 14Bacteria, fungi, lower plants survive in adverse conditions by2011Seed Dormancy
  15. 15What are labelled phases and in given sigmoidal growth curve?2011Growth
  16. 16Assertion : Plant growth as a whole is indefinite. Reason : Plants retain the capacity of continuous growth throughout their life.2011Growth
  17. 17Which of the following is best method of germplasm conservation ?2011Conservation of Biodiversity
  18. 18After glycolysis, fate of glucose in mitochondrial matrix is2011Glycolysis
  19. 19In the given diagram and represent A B2011Nitrogen Metabolism
  20. 20Which of the following elements is present in very less quantity in the body ?2011Functions of Essential Elements
  21. 21Which of the following statements is correct?2011Mechanism of Photosynthesis
  22. 22Assertion : Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids. Reason : Photolysis of water tak2011Mechanism of Photosynthesis
  23. 23What is the characteristic of tapetum ?2011Sexual Reproduction
  24. 24Cleistogamy is leading over anthesis because2011Sexual Reproduction
  25. 25Assertion : In some species of asteraceae and poaceae seeds are formed without fertilization. Reason : Formation of fruit without fertilizat2011Sexual Reproduction
  26. 26Which statement is correct regarding mosses ?2011Pteridophytes
  27. 27Assertion : In angiosperms, transport of food and water is more efficient than gymnosperms and pteridophytes. Reason : In angiosperms longit2011Angiosperms
  28. 28In vehicles, catalytic converters are used2011Pollution
  29. 29Which of the following statements is correct?2011Pollution
  30. 30Assertion : Amount of organic biodegradable compounds present in water is measured by the BOD of that water. Reason : During biodegradation 2011Pollution
  31. 31Assertion : Algal blooms are formed in nutrientless water. Reason : Algal blooms in water turn it unfit for human consumption, but cause eno2011Pollution
  32. 32Which of the following features can be said to be a true defining feature of living beings without any exception?2011What is Living

Chemistry

  1. 1Decreasing order of nucleophilicity is2011Attacking reagents
  2. 2Find the number of stereoisomers of 1,2-dihydroxy cyclopentane.2011Isomerism of Organic Compounds
  3. 3The correct increasing order of reactivity for the following molecules towards electrophilic aromatic substitution is2011Electron displacement effects
  4. 4The correct decreasing order of is2011Electron displacement effects
  5. 5Preview not available - open to view this question.2011Electron displacement effects
  6. 6Preview not available - open to view this question.2011Reaction Intermediates
  7. 7Assertion : -Nitrophenol gives more electrophilic substituted compound than methoxyphenol. Reason : Methoxy group shows only negative I-effe2011Electron displacement effects
  8. 8In solid ice, oxygen atom is surrounded2011Hybridisation and VSEPR Theory
  9. 9Decreasing order of bond angle is2011Hybridisation and VSEPR Theory
  10. 10The number of - and -bonds present in pent-4-ene-1-yne is2011Covalent and Co-ordinate Bonding
  11. 11Assertion : is more soluble in than in water. Reason : Ammonia is more polar than water.2011Polarization
  12. 12Assertion : The formal oxidation no. of sulphur in is 2.5 . Reason : Two S-atoms are not directly linked with -atoms.2011Covalent and Co-ordinate Bonding
  13. 13Maximum decarboxylation occurs in2011Reactions Involving Acid Group
  14. 14Smallest wavelength occurs for2011Hydrogen spectrum
  15. 15Which of the following is wrong for Bohr model?2011Bohr's model
  16. 16The compound which does not exist as hydrate form2011Salt Hydrolysis
  17. 17of is , find the volume for of (M.wt. = 136).2011Solubility
  18. 18is neutralised by of . Then of resulting solution is2011PH of solutions
  19. 19Which of the following is not hygroscopic?2011General Characteristics of Alkali Metals
  20. 20The enthalpy of formation of and is and respectively. For the reaction, is2011Laws of Thermochemistry and Enthalpy Change
  21. 21For adiabatic process, which is correct?2011First Law and Basic Fundamentals of Thermodynamics
  22. 22Which of the following is not a thermodynamic function?2011First Law and Basic Fundamentals of Thermodynamics
  23. 23Which of the following is intensive property?2011System and surrounding
  24. 24Assertion : Entropy is always constant for a closed system. Reason : Closed system is always reversible.2011Entropy and Second law of thermodynamics
  25. 25Iodine oxidises sodium borohydride to give2011Halogens and Its Compounds
  26. 26on hydrolysis gives fumes of2011Phosphorus and Its Compounds
  27. 27First compound of Xe synthesized was2011Noble Gases
  28. 28Best method to form aromatic iodide is2011Halogens and Its Compounds
  29. 29Assertion : Helium is used in diving apparatus. Reason : Solubility of helium is less in blood.2011Noble Gases
  30. 30The wrong statement about fullerene is2011Carbon and Its Compounds
  31. 31The wavelength of light absorbed is highest in2011Crystal Field Theory
  32. 32Which of the following is diamagnetic?2011Werner's theory and Valence Bond Theory
  33. 33Which of the following is incorrect for physisorption?2011Adsorption
  34. 34Assertion : Toluene in presence of UV rays forms benzaldehyde. Reason : Dichlorotoluene is formed as an intermediate.2011Reactions of aromatic compounds
  35. 35Assertion : A reaction is spontaneous if ve. Reason : For is always -ve.2011Cells and Electrode Potential, Nernst Equation
  36. 36Schottky defect is2011Stoichiometric defects
  37. 37Assertion : and has same packing efficiency. Reason : Both have same number of atoms per unit cell and same arrangement.2011Cubic system
  38. 38Which of the following is not a characteristic of equilibrium?2011Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  39. 39Which material is used as a neutron moderator?2011F-Block elements
  40. 40Assertion : Reduction potential of Mn to +2 is more positive than Fe to +2 . Reason : Ionisation potential of Mnis more than that of .2011Properties of D-block elements
  41. 41Assertion : A non volatile solute is mixed in a solution then elevation in boiling point and depression in freezing point both are . Reason 2011Colligative Properties and Abnormal Molecular Masses
  42. 42Find the product for (excess)2011Reactions of Ethers
  43. 43Assertion: Dehydration of alcohols always takes place in basic medium. Reason : is a better leaving group.2011Reactions of Alcohols
  44. 44Predict the product of reaction of with in basic medium.2011Redox titration
  45. 45When reacts with in alkaline medium gives bromate ion. Then oxidation state of Mn changes from +7 to2011Redox titration
  46. 46How much amount of is required for liberation of of when titrated with ?2011Redox titration
  47. 47Assertion : Sulphur is oxidised by in presence of (III). Reason : Fe (III) oxidises sulphur to sulphate.2011Oxidation and Reduction Reactions
  48. 48Assertion : Chlorine undergoes disproportionation reaction in alkaline medium. Reason : is an oxidising agent.2011Types of redox reactions
  49. 49For a first order gas phase reaction- be initial pressure of and the total pressure at time ' '. Integrated rate equation is2011Integrated rate laws
  50. 50Assertion : Two different reactions can never have same rate of reaction. Reason : Rate of reaction always depends only on frequency of coll2011Arrhenius theory
  51. 51Isoprene is2011Preparation and Properties of Polymers
  52. 52Assertion : Rate of reaction of alkyl halide in Williamson's synthesis reaction is . Reason : It is a type of bimolecular substitution react2011Preparation and Properties of Monohalides
  53. 53Reason : It follows with formation of more stable carbocation.2011Preparation and Properties of Monohalides
  54. 54In the van der Waals equation, ' ' signifies2011Real Gases and Van der Waal's Equation
  55. 55Find the hydrolysis product when a phosphodiester bond of nucleotide breaks.2011Nucleic Acids
  56. 56Find the hydrolysis product of maltose.2011Disaccharides and Polysaccharides
  57. 57Assertion : -pleated sheet structure of protein shows maximum extension. Reason : Intermolecular hydrogen bonding is present in them.2011Proteins
  58. 58Assertion : Fructose is a reducing sugar. Reason : It has a ketonic group.2011Carbohydrates
  59. 59Assertion : is less acidic than . Reason : Te has larger radius than .2011Periodic properties
  60. 60Assertion : exists but does not exist. Reason : is more electronegative than .2011Periodic properties

Physics

  1. 1In an interference, the intensity of two interfering waves are and respectively. They produce intensity at two points and with phase angle o2011Interference of Light
  2. 2In a single slit diffraction with and a lens of diameter then width of central maxima, obtain on screen at a distance of will be2011Diffraction of Light
  3. 3What is the moment of inertia for a solid sphere w.r.t. a tangent touching to its surface?2011Moment of inertia of rigid bodies
  4. 4Given, and . Find the linear velocity.2011Uniform Circular Motion
  5. 5Magnetic energy per unit volume is represented by2011Inductance
  6. 6Mutual inductance between two concentric coils of radii and is2011Self and Mutual Inductance
  7. 7Lenz law is consistent with conservation of2011Magnetic Flux, Faraday's and Lenz law
  8. 8For an adiabatic process2011Thermodynamic Processes
  9. 9For cyclic process which of the following quantity is zero?2011Thermodynamic Processes
  10. 10Assertion: During rapid pumping of air in tyres, air inside the tyre is hotter than atmospheric air. Reason : Adiabatic process occurs at ve2011Thermodynamic Processes
  11. 11What is the dimensions of magnetic field in terms of (= coulomb), M, L, T?2011Dimensions
  12. 12Emissive and absorptive power of a material at is 8 and 10 respectively, calculate the emissivity of IBB (Ideal black body)2011Radiation
  13. 13The ratio of the masses of the elements having their nuclear radii 2 fermi and 1 fermi is2011Nuclear structure
  14. 14For a nuclear reactor to run in critical condition the reproduction factor should be2011Nuclear reactions
  15. 15absorbs energy and decays into which element after two -emissions?2011Radioactivity
  16. 16Half life of a radioactive material is 5 years, then the percentage of it remained after 25 years will be2011Radioactivity
  17. 17Among the following which is used to control the rate of reaction in nuclear fission reactions?2011Nuclear reactions
  18. 18Assertion : For nuclear reactor, it is desirable to have . Reason : Sustained chain reaction occur at this critical condition.2011Nuclear reactions
  19. 19Assertion : Mass defect in nuclear reactions is less than Reason : In nuclear reaction, change in is generally less than .2011Nuclear reactions
  20. 20Assertion : It is very easy to detect neutrino in nature. Reason : It has high affinity to interact with matter.2011Nuclear structure
  21. 21Assertion : It is desirable to slow down fast moving neutrons to sustain controlled chain reactions. Reason : Slow moving neutrons efficient2011Nuclear reactions
  22. 22A proton travels few distance in an electric field, then it enters a crossed magnetic field of and radius , find the velocity of proton.2011Motion of Charged Particle in Magnetic Field
  23. 23When orientation of dipoles parallel and antiparallel to magnetic field is distributed unequally, then the material is2011Magnetic Dipole
  24. 24Magnetic field at distance a from long current carrying wire is proportional to2011Magnetic Field
  25. 25When a positively charged particle enters into a uniform magnetic field with uniform velocity, its trajectory can be (i) a straight line (ii2011Motion of Charged Particle in Magnetic Field
  26. 26Assertion : Magnetic field lines are continuous and closed. Reason : Magnetic monopole does not exist.2011Magnetic Dipole
  27. 27Assertion : is conserved at every instant of (elastic) collision. Reason : No deformation of matter occurs in elastic collision.2011Collisions
  28. 28A cylindrical wire is twisted with an angle , what is torsion produced in it?2011Angular oscillations
  29. 29If maximum speed of a particle in SHM is given by , what is its average speed?2011Simple Harmonic Motion
  30. 30Which of the following equation does not represent a SHM?2011Simple Harmonic Motion
  31. 31In simple harmonic motion, loss of kinetic energy is proportional to2011Energy of Simple Harmonic Motion
  32. 32Energy stored in between the plates of parallel plate capacitor of area , separated by distance is2011Force and Energy stored in capacitor
  33. 33If we assume kinetic energy of a proton is equal to energy of the photon, the ratio of de Broglie wavelength of proton to photon is proporti2011Photoelectric Effect
  34. 34Assertion : There is a physical significance of matter waves. Reason : Both interference and diffraction occurs in it.2011Matter Waves
  35. 35Assertion: Gauss's law can't be used to calculate electric field near an electric dipole. Reason: Electric dipole don't have symmetrical cha2011Electric Flux and Gauss Law
  36. 36What is your observation when two sources are emitting sound with frequency and ?2011Travelling Waves
  37. 37If man were standing unsymmetrically between parallel cliffs, claps his hands and starts hearing a series of echoes at intervals of . If spe2011Beats
  38. 38Assertion : Transverse sound wave does not occurs in gases. Reason: Gases cannot sustain shearing strain.2011Basics of Mechanical Waves
  39. 39What is the mechanical equivalent of spring constant in LC oscillating circuit?2011AC Circuits
  40. 40In series circuit, the phase difference between applied voltage and current is2011AC Circuits
  41. 41Water is flowing with velocity in a cylinder of diameter , it is connected to a pipe with it end tip of diameter , calculate the velocity of2011Hydrodynamics
  42. 42Pressure head in Bernoulli's equation is2011Hydrodynamics
  43. 43Direction of electric field in junction diode is2011Diodes
  44. 44Assertion : Photodiode and photovoltaic cell are based on the same principle. Reason : Both use same method of operations to work.2011Special purpose diodes
  45. 45Assertion : Transistor can be used as a switch. Reason: Both linear and non-linear voltage bias dependance occurs in it.2011Junction Transistors
  46. 46A object at rest is subjected to a force . What is the velocity after ?2011Rest and Motion
  47. 47Which of the following substances magnetic susceptibility is negative?2011Magnetic Materials and their Properties
  48. 48Assertion : Magnetic force between two short magnets, when they are co-axial follows inverse square law of distance. Reason : The magnetic f2011Magnetism and Properties of Magnet
  49. 49Two lens of focal lengths and are put in combination, find the power of the combination.2011Combination of Lens and Mirrors
  50. 50A far sighted person has his near point , find the power of lens he should use to see at , clearly.2011Human eye
  51. 51Assertion: When white light fall on the compact disc, multicolours are seen after reflection. Reason: CD disc behaves like a prism.2011Prism and Dispersion of Light
  52. 52Assertion: When a white light is passed through a lens, violet light is more refracted than red light. Reason : Focal length for red light i2011Lens Formula, Refraction of light from curved surface
  53. 53Assertion : Microscope magnifies the image. Reason : Angular magnification for image is more than object in microscope.2011Optical Instruments
  54. 54Assertion : Magnification of a convex mirror is always positive, but that of a concave mirror may be both positive or negative. Reason : It 2011Mirror Formula, Reflection in Spherical Mirror
  55. 55Voltage of modulating wave of with frequency was superimposed on carrier wave of frequency and voltage then the modulation index is2011Modulation
  56. 56The area covered by a transmitting antenna of height is2011Modulation
  57. 57Assertion : In the transmission of long distance radio signals, short wave band is used. Reason : In shorter wavelength, attenuation is very2011Propagation of EM Waves
  58. 58The series corresponding to minimum wavelength transition in -atom2011Atomic Spectrum
  59. 59Assertion: is always greater than in gases. Reason : Work done at constant pressure is more than at constant volume.2011Degree of Freedom and Specific Heat
  60. 60Assertion: Total energy is conserved in moving a satellite to higher orbit. Reason : Sum of change in PE and KE is same in magnitude and opp2011Energy

Zoology

  1. 1Skeletal muscles appear striated due to presence of two characteristic proteins in alternating dark and light bands. Which of the following 2011Locomotion
  2. 2Which of the following statements is correct ? 1. Common cold - Droplet Infection. 2. Typhoid - Contaminated food \& water. 3. AIDS - Shakin2011Common Health Disease
  3. 3Assertion : Sporozoites of malarial parasite enter in the human body due to biting of freshly born female Anopheles mosquito, whose mother w2011Common Health Disease
  4. 4Monarch butterfly escapes from predators by2011Populations
  5. 5Which of the following statements is correct ?2011Human Evolution
  6. 6Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired characters?2011Process or Mechanism of Evolution
  7. 7Which of the following is correct?2011Sex Determination
  8. 8Assertion : A geneticist crossed two plants, he got tall and dwarf progenies. Reason : It follows Mendelian law as one of the parent plant m2011Mendel's Experiment
  9. 9If medulla oblongata is destroyed then which of the following functions will be effected?2011Structure of Human Brain
  10. 10Assertion : Organ of Corti rests on tectorial membrane. Reason : It helps to maintain equilibrium of body.2011Sensory Organ
  11. 11Which one of the following options is a correct match of phenomenon and its explanation?2011Central Dogma
  12. 12Tendon and ligament are example of2011Connective Tissue
  13. 13Which of the following is a correct match?2011Frog
  14. 14Assertion : Blood in cockroach is colourless haemolymph with no respiratory pigment. Reason : Respiration in cockroach occurs through diffus2011Connective Tissue
  15. 15Which of the following statements is incorrect regarding fermentation?2011Products
  16. 16Which of the following statements is correct?2011Sewage Treatment
  17. 17Which of the following statements is correct?2011Female Reproductive System
  18. 18Assertion : Corpus luteum is produced by Graafian follicle after ovulation. Reason : It secretes estrogen which is necessary to maintain pre2011Female Reproductive System
  19. 19First clinical gene therapy was given in 1992 to a 4 years old girl for2011Application in Medicine
  20. 20Assertion : A gene from Bacillus thuringiensis is incorporated in plant genome to increase their yield. Reason : Bacillus thuringiensis has 2011Application in Agriculture
  21. 21Which of the following is an incorrect statement?2011Blood Group
  22. 22The opening between the right atrium and the right ventricle is guarded by the valve named2011Human Circulatory System
  23. 23Assertion : Blood group ' ' have anti-A \& antiB antibodies. Reason : It does not have any antigens.2011Blood Group
  24. 24Assertion: S.A. node induces excitatory impulses in heart. Reason : S.A. node is self excitatory.2011Human Circulatory System
  25. 25What is the source of EcoRI?2011Conceptual Development of Genetic Engineering
  26. 26Which one of the following is correct regarding the excretion?2011Mammalian Urinary System
  27. 27In assisted reproductive technology where gametes have been fertilized in vitro, which of the following is practicable for embryo transplant2011Infertility
  28. 28Assertion : Now-a-days amniocentesis is banned. Reason : Amniocentesis gives the information of any abnormality in the foetus and many other2011Problems and Strategies

Frequently Asked Questions

1.How many questions are in the AIIMS 2011 paper?

This paper has 180 questions in total - 32 from Botany, 60 from Chemistry, 60 from Physics, and 28 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.How is the AIIMS 2011 paper structured?

The AIIMS 2011 paper on MARKS has 180 questions, organised by subject:

  • Botany: 32 questions - 32 single-correct.
  • Chemistry: 60 questions - 60 single-correct.
  • Physics: 60 questions - 60 single-correct.
  • Zoology: 28 questions - 28 single-correct.
4.How difficult is the AIIMS 2011 paper?

Each question on MARKS carries a difficulty rating. Of the 180 rated questions in this paper, 115 (64%) are easy, 33 (18%) are medium and 32 (18%) are hard. Subject wise:

  • Botany: 21 easy, 0 medium, 11 hard
  • Chemistry: 37 easy, 19 medium, 4 hard
  • Physics: 39 easy, 13 medium, 8 hard
  • Zoology: 18 easy, 1 medium, 9 hard
5.Which chapters were asked the most in the AIIMS 2011 paper?

The chapters with the most questions in each subject were:

  • Botany: Environmental Issues (4), Transport in Plants (4), and Plant - Growth and Development (3).
  • Chemistry: General Organic Chemistry (7), Chemical Bonding and Molecular Structure (5), and p Block Elements (Group 15, 16, 17 & 18) (5).
  • Physics: Nuclear Physics (9), Ray Optics (6), and Magnetic Effects of Current (5).
  • Zoology: Body Fluids and Circulation (4), Structural Organisation in Animals (3), and Biotechnology and Its Applications (2).
6.Are there any out-of-syllabus questions in the AIIMS 2011 paper?

Yes. 41 of the 180 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.

7.Where can I find the solutions for the AIIMS 2011 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.

8.How should I use the AIIMS 2011 paper to check my preparation?

Set a timer, attempt the 180 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 AIIMS. Repeating this with other papers shows whether the same weak spots keep coming back.