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AIIMS 2008

Browse the complete Botany, Chemistry, Physics, and Zoology question set from the AIIMS 2008 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 - 93 easy (52%), 65 moderate (36%) and 22 tough (12%). 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 58% easy, 28% moderate, 13% tough; Chemistry 60% easy, 30% moderate, 10% tough; Zoology 33% easy, 48% moderate, 18% tough; Botany 41% easy, 52% moderate, 7% tough.

Botany questions were spread across 15 chapters, with Morphology of Flowering Plants (3), Anatomy of Flowering Plants (2), and Biological Classification (2) carrying the most weight. Chemistry questions were spread across 24 chapters, with General Organic Chemistry (9), Alcohols Phenols and Ethers (7), and Hydrocarbons (6) carrying the most weight. Physics questions were spread across 28 chapters, with Current Electricity (9), Ray Optics (6), and Magnetic Effects of Current (4) carrying the most weight. Zoology questions were spread across 11 chapters, with Human Health and Diseases (6), Organisms and Populations (6), and Human Reproduction (4) carrying the most weight.

Botany

  1. 1Enzymes, vitamins and hormones can be classified into a single category of biological chemicals because of all of these2008Enzymes
  2. 2Assertion : Competitive inhibitor is also called as substrate analogue. Reason : It resembles the enzymes in structure.2008Enzymes
  3. 3In succulent plants the stomata open in night and close in day. Which among the following would be best hypothesis to explain the mechanism 2008Transpiration
  4. 4Assertion : Light is one of the important factor in transpiration. Reason : It induces stomatal opening and closing. Therefore, transpiratio2008Transpiration
  5. 5Assertion : \(F_1\) particles are present in the inner mitochondrial membrane. Reason : An electron gradient formed on the inner mitochondri2008Cell Organelles
  6. 6The cells of the quiescent centre are characterised by2008The Root
  7. 7Assertion : Maize is an albuminous seed. Reason : Endosperm is completely absorbed by its growing embryo.2008The Seed
  8. 8Assertion : Nuclear endosperm is formed by subsequent nuclear division without wall formation. Reason : Coconut is an example of such endosp2008The Seed
  9. 9Ectophloic siphonostele is found in2008Permanent Tissues
  10. 10Chlorenchyma is known to develop in the2008Permanent Tissues
  11. 11Phytohormones are2008Plant Growth Regulators
  12. 12A patient of diabetes mellitus excretes glucose in urine even when he is kept in a carbohydrate free diet. It is because2008Cellular Respiration
  13. 13Cut surfaces of fruit and vegetables often become dark because2008Aerobic Respiration
  14. 14Nicotiana sylvestris flowers only during long days and N.tabacum flowers only during short days. If raised in the laboratory under different2008Nitrogen Metabolism
  15. 15Thermococcus, Methanococcus and Methanobacterium exemplify2008Kingdom Monera
  16. 16Assertion : Protoplasmic continuity is maintained in perforated septum. Reason : Usually a small pore remains in the centre of the septum.2008Kingdom Fungi
  17. 17Assertion : The higher concentration of \( {O}_2\) in the atmosphere is inhibitory to photosynthesis. Reason : \( {CO}_2\) is the main subst2008The Site of Photosynthesis
  18. 18Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube b2008Sexual Reproduction
  19. 19A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this?2008Pollution
  20. 20Which one of the following pairs of plant structures has haploid number of chromosomes?2008Sexual Reproduction
  21. 21Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.2008Gymnosperms
  22. 22Assertion : The primary protenema of moss by death and decay of cells may break into fragments. Reason : Each fragment gives rise to leafy g2008Algae: Thallophytes
  23. 23Assertion : Dimethyl mercury is a highly persistent pollutant that accumulates in food chains. Reason : Mercury pollution is responsible for2008Pollution
  24. 24Which one of the following methods is commonly used to maintain the genetic traits of a given plant?2008Types of Reproduction
  25. 25Assertion : Many plants are propagated vegetatively even though they bear seeds. Reason : Potatoes multiply by tubers and apple by cutting.2008Types of Reproduction
  26. 26The bacteria which attack dead animals are2008Structure of Ecosystem
  27. 27Assertion : The plant biomass which serves as the food of herbivores and decomposers is said to result from the gross primary productivity. 2008Functions of Ecosystem

Chemistry

  1. 1In which of the following preparations of ether, the configuration about chiral centre is not retained?2008Isomerism of Organic Compounds
  2. 2Which of the following compounds is not chiral?2008Isomerism of Organic Compounds
  3. 3Which of the following molecules will not show optical activity?2008Isomerism of Organic Compounds
  4. 4Which of the following is aromatic?2008Conjugation and Aromaticity
  5. 5Assertion : Tertiary carbonium ions are generally formed more easily than primary carbonium ions. Reason : Hyperconjugation as well as induc2008Conjugation and Aromaticity
  6. 6Assertion : Cyclohexanone exhibits keto-enol tautomerism. Reason : In cyclohexanone, one form contains the keto group \((> {C}= {O})\) while2008Isomerism of Organic Compounds
  7. 7Assertion : Benzaldehyde is less reactive than ethanal towards nucleophilic attack. Reason : The \(+R\) effect of phenyl group decreases the2008Conjugation and Aromaticity
  8. 8Assertion : Anilinium chloride is more acidic than ammonium chloride. Reason : Anilinium chloride is resonance stabilised.2008Conjugation and Aromaticity
  9. 9Assertion : Pyrrole is an aromatic heterocyclic compound. Reason : It has cyclic delocalised \(6 \) electrons.2008Conjugation and Aromaticity
  10. 10The correct order of dipole moment is2008Dipole moment
  11. 11Assertion : \( {SeCl}_4\) does not have a tetrahedral structure. Reason : \( {Se}\) in \( {SeCl}_4\) has two lone pairs.2008Hybridisation and VSEPR Theory
  12. 12Assertion : The quantized energy of an electron is largely determined by its principal quantum number. Reason : The principal quantum number2008Quantum mechanical model
  13. 13The correct order of increasing \( [ {H}_3 {O}^{+} ]\)in the following aqueous solutions is2008PH of solutions
  14. 14Assertion : Many endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature. Reason : Entropy2008Entropy and Second law of thermodynamics
  15. 15What is the correct relationship between the \( {pH}\) of isomolar solutions of sodium oxide \( ( {pH}_1 )\), sodium sulphide \( ( {pH}_2 )\2008Sulphur and Its Compounds
  16. 16The number of \( {S}- {S}\) bonds in sulphur trioxide trimer \( ( {S}_3 {O}_9 )\) is2008Sulphur and Its Compounds
  17. 17Which acid has \( {P}- {P}\) linkage?2008Phosphorus and Its Compounds
  18. 18Assertion : Bleaching powder reacts with dilute acids to evolve chlorine. Reason : The chlorine liberated by the action of dilute acids on b2008Halogens and Its Compounds
  19. 19Assertion : Liquid \( {NH}_3\) is used for refrigeration. Reason : Liquid \( {NH}_3\) quickly vapourises.2008Nitrogen and Its Compounds
  20. 20Assertion : In high spin situation, configuration of \(d^5\) ions will be \(t_{2 g}^3 e_g^2\) Reason : In high spin situation, pairing energ2008Crystal Field Theory
  21. 21Correct equation of Freundlich isotherm is2008Adsorption isotherms
  22. 22Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heat2008Preparation and Properties of Benzene
  23. 23\( {CH}_3 {CH}= {CHCH}_3+ {CHCl}_3+t- {BuOK} A\). \(A\) is2008Reactions of alkenes
  24. 24The function of \( {ACl}_3\) in Friedel-Craft's reaction is to2008Reactions of aromatic compounds
  25. 25\( {C}_6 {H}_6 { {H}_2 {SO}_4}{ { {HNO}_3}{ }} X { {FeCl}_3}{ { {Cl}_2}{ }} Y\). In the above sequence \(Y\) can be2008Reactions of aromatic compounds
  26. 26Assertion : Phenol is more reactive than benzene towards electrophilic substitution reaction. Reason : In the case of phenol, the intermedia2008Reactions of aromatic compounds
  27. 27The time period to coat a metal surface of \(80 {~cm}^2\) with \(5 10^{-3} {~cm}\) thick layer of silver (density \(1.05 {~g} {~cm}^{-3}\) )2008Cells and Electrode Potential, Nernst Equation
  28. 28For the following concentration cell, to be spontaneous \( {Pt} ( {H}_2 ) P_1\) atm. \(| {HCl}| {Pt} ( {H}_2 ) P_2\) atm. Which of the follo2008Cells and Electrode Potential, Nernst Equation
  29. 29The standard oxidation potential \(E^{ }\) for the half cell reaction are \[ {array}{ll} {Zn} {Zn}^{2+}+2 e^{-} ; & E^{ }=+0.76 {~V} \\ {Fe}2008Cells and Electrode Potential, Nernst Equation
  30. 30To observe the effect of concentration on the conductivity of electrolytes of different nature were taken in two vessels \(A\) and \(B . A\)2008Conductance and Conductivity
  31. 31Assertion : Copper metal gets readily corroded in acidic aqueous solution. Reason : Free energy change for this process is negative.2008Corrosion
  32. 32The flame colours of metal ions are due to2008Non-stoichiometric defects
  33. 33A unit cell of sodium chloride has four formula units. The edge length of the unit cell is \(0.564 {~nm}\). What is the density of sodium ch2008Cubic system
  34. 34The dissociation equilibrium of a gas \(A B_2\) can be represented as \[ 2 A B_{2(g)} 2 A B_{(g)}+B_{2(g)} \] The degree of dissociation is 2008Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  35. 35Assertion : According to Le-Chatelier's principle addition of heat to an equilibrium solid \( \) liquid results in decrease in the amount of2008Le chatelier's principle
  36. 36Percentage of Se (at. mass \(=78.4)\) in peroxidase anhydrase enzyme is \(0.5 \%\) by weight, then minimum molecular mass of peroxidase anhy2008Concentration terms
  37. 37Assertion : When a concentrated solution is diluted by adding more water, molarity of the solution remains unchanged. Reason : Product of mo2008Concentration terms
  38. 38Identify \(Z\) in the reaction.2008Reactions of Phenol
  39. 39Cumene process is the most important commercial method for the manufacture of phenol. Cumene is2008Preparation of Phenols
  40. 40When phenol reacts with phthalic anhydride in presence of \( {H}_2 {SO}_4\) and heated and hot reaction mixture is poured in \( {NaOH}\) sol2008Properties of Phenol
  41. 41Oxidation product of 1,2 -cyclopentanediol with \( {HIO}_4\) gives2008Methods of Preparation of Carbonyl Compounds
  42. 42The reaction is called2008Reactions of Carbonyl Compounds
  43. 43Assertion : 2-Butanol on heating with \( {H}_2 {SO}_4\) gives 1-butene and 2-butene. Reason : Dehydration of 2-butanol follows Saytzeff's ru2008Reactions of Alcohols
  44. 44Assertion : Ethers behave as bases in the presence of mineral acids. Reason : It is due to the presence of lone pair of electrons on the oxy2008Reactions of Ethers
  45. 45For the reaction, \(2 {NO}_2+ {F}_2 2 {NO}_2 {~F}\), following mechanism has been provided. \[ {aligned} & {NO}_2+ {F}_2 { { Slow }}{ } {NO}2008Rate law and rate constant
  46. 46Acid hydrolysis of sucrose is a2008Rate law and rate constant
  47. 47Which of the following is considered as an anticancer species?2008Drugs and It's Classification
  48. 48Which one of the following is not a surfactant?2008Cleansing Agents
  49. 49Assertion : Teflon has high thermal stability and chemical inertness. Reason : Teflon is a thermoplastic.2008Preparation and Properties of Polymers
  50. 50Which of these compounds is synthesised by chloral?2008Preparation and Properties of Aryl Halides
  51. 51The purification of alumina is called2008Extraction of Metals
  52. 52The root mean square speed of the molecules of diatomic gas is \(u\). When the temperature is doubled, the molecules dissociate into two ato2008Kinetic theory of gases
  53. 53Assertion : If \( {H}_2\) and \( {Cl}_2\) enclosed separately in the same vessel exert pressure of 100 and \(200 {~mm}\) respectively, their2008Mixture of gases
  54. 54The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive called RDX. The organic com2008Reactions of aromatic compounds
  55. 55Which of the following amines, can give \( {N}\)-nitrosoamine on treatment with \( {HNO}_2\) ?2008Preparation and Properties of Amines
  56. 56Toluene on treatment with \( {CrO}_3\) and \( ( {CH}_3 {CO} )_2 {O}\) followed by hydrolysis with dil. \( {HCl}\) gives2008Method of preparation for Aldehydes
  57. 57Identify the final product.2008Tests for aldehyde and ketones
  58. 58Assertion : \( ( {CH}_3 )_3 {CCOC} ( {CH}_3 )_3\) and acetone can be distinguished by the reaction with \( {NaHSO}_3\). Reason : \( {HSO}_3^2008Chemical reactions for aldehydes and ketones
  59. 59Prolonged exposure of fat or oil in moist air and light causes bad smell (rancidity). It is due to2008Fats
  60. 60Green chemistry means such reactions which2008Control of environmental pollution

Physics

  1. 1In Young's double slit experiment, the distance between two slits is made three times then the fringe width will become2008Youngs Double Slit Experiment
  2. 2Light is incident normally on a diffraction grating through which the first diffraction is seen at \(32^{ }\). In this case the second order2008Diffraction of Light
  3. 3Side of an equilateral triangle is \(l\). Three point masses, each of magnitude \(m\), are placed at the three vertices of the triangle. Mom2008Moment of inertia of rigid bodies
  4. 4A particle of mass \(m\) moves with constant speed along a circular path of radius \(r\) under the action of force \(F\). Its speed is2008Uniform Circular Motion
  5. 5Assertion : When the velocity of projection of a body is made \(n\) times, its time of flight becomes \(n\) times. Reason : Range of project2008Projectile motion
  6. 6Assertion : Inductance coils are usually made of thick copper wire. Reason : Induced current is more in wire having less resistance.2008Inductance
  7. 7If there were no atmosphere, the average temperature on earth surface would be2008Thermodynamic Systems
  8. 8In an electrical circuit containing \(L, C\) and \(R\) which of the following does not denote the dimensions of frequency?2008Dimensions
  9. 9Lumen is the unit of2008Units
  10. 10Assertion: In the relation \(f= {1}{2 l} { {T}{ }}\), where symbols have standard meaning, \( \) represent linear mass density. Reason : The2008Dimensions
  11. 11A slab consists of two layers of different materials of the same thickness and having thermal conductivities \(K_1\) and \(K_2\) are connect2008Conduction
  12. 12\(N_1\) atoms of a radioactive element emit \(N_2\) beta particles per second. The decay constant of the element is (in s \({ }^{-1}\) )2008Radioactivity
  13. 13Assertion : \({ }^{90} {Sr}\) from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consum2008Radioactivity
  14. 14Two changes \(+q\) and \(-q\) are attached to the two ends of a light rod of length \(L\), as shown in figure. The system is given a velocit2008Motion of Charged Particle in Magnetic Field
  15. 15The ratio of magnetic fields on the axis of a circular current carrying coil of radius \(a\) to the magnetic field at its centre will be2008Magnetic Field
  16. 16Assertion : When radius of circular loop carrying current is doubled, its magnetic moment becomes four times. Reason : Magnetic moment depen2008Magnetic Moment
  17. 17Assertion : The energy of charged particle moving in a uniform magnetic field does not change. Reason : Work done by magnetic field on the c2008Motion of Charged Particle in Magnetic Field
  18. 18The equivalent resistance between the points \(X\) and \(Y\) in the following circuit diagram will be2008Combination of Resistances
  19. 19A bulb and a condenser are connected in series with an A.C. source. On increasing the frequency of the source its brightness will2008Electric Power and Heating Effect of Current
  20. 20Two heater wires, made of the same material and having the same length and the same radius, are first connected in series and then in parall2008Electric Power and Heating Effect of Current
  21. 21A bulb of \(25 {~W}, 200 {~V}\) and another bulb of \(100 {~W}, 200 {~V}\) are connected in series with a supply line of \(220 {~V}\). Then2008Electric Power and Heating Effect of Current
  22. 22The curve between \( _e {J}{T^2}\) and \( {1}{T}\) is2008Electric Current and Drift of Electrons
  23. 23Assertion : A spark occur between the poles of a switch when the switch is opened. Reason : Current flowing in the conductor produces magnet2008Electric Current and Drift of Electrons
  24. 24Assertion : A bird perches on a high power line and nothing happens to the bird. Reason : The level of bird is very high from the ground.2008Electric Current and Drift of Electrons
  25. 25Assertion : In the following circuit, emf is \(2 {~V}\) and internal resistance of the cell is \(1 \) and \(R=1 \), then reading of the volt2008Electric Instruments
  26. 26Assertion: A domestic electrical appliance, working on a three pin will continue working even if the top pin is removed. Reason : The third 2008Electric Current and Drift of Electrons
  27. 27Suppose the gravitational force varies inversely as the \(n^{ {th }}\) power of distance. Then the time period of a planet in circular orbit2008Newton’s Law of Gravitation
  28. 28Assertion : In an SHM, kinetic and potential energies become equal when the displacement is \(1 / {2}\) times the amplitude. Reason : In SHM2008Energy of Simple Harmonic Motion
  29. 29A laser beam is used for carrying out surgery because, it2008Photoelectric Effect
  30. 30Which of the following is matched wrongly?2008Matter Waves
  31. 31Assertion: Stopping potential depends upon the frequency of incident light but is independent of the intensity of the light. Reason : The ma2008Photoelectric Effect
  32. 32Electric field at the centre of a uniformly charged semicircle of radius \(a\) is2008Electric Field and Electric Field Lines
  33. 33A charge \(q\) is uniformly distributed on a ring of radius \(r\). A sphere of an equal radius is constructed with its centre lying on the p2008Electric Flux and Gauss Law
  34. 34Two closed organ pipes of length \(100 {~cm}\) and \(101 {~cm}\) produces 16 beats in \(20 {sec}\). When each pipe is sounded in its fundame2008Organ Pipe (Vibration of Air Column)
  35. 35If frequency of \(R-L\) circuit is \(f\) then impedence will be2008AC Circuits
  36. 36When \(100 {~V}\) d.c. is applied across a coil, a current of 1 A flows through it. When \(100 {~V}\) a.c. of \(50 {~Hz}\) is applied to the2008AC Circuits
  37. 37Assertion : The alternating current lags behind the e.m.f. by a phase angle of \( / 2\), when AC flows through an inductor. Reason : The ind2008Alternating Current, Voltage and Power
  38. 38A thread is tied slightly loose to a wire frame as in figure and the frame is dropped into a soap solution and taken out. The frame is compl2008Surface tension
  39. 39Assertion : A needle placed carefully on the surface of water may float, whereas a ball of the same material will always sink. Reason : The 2008Archmidies Principle
  40. 40The velocity of electromagnetic radiation in a medium of permittivity \( _0\) and permeability \( _0\) is given by2008Electromagnetic Waves and Maxwell's equations
  41. 41Assertion : X-rays can penetrate through the flesh but not through the bones. Reason : The penetrating power of X-rays depends on voltage.2008X-Rays
  42. 42A Ge specimen is doped with Al. The concentration of acceptor atoms is \( 10^{21}\) atoms \(/ {m}^3\). Given that the intrinsic concentratio2008Semiconductors
  43. 43The forbidden gap in the energy bands of silicon is2008Energy Bands in Solids
  44. 44Which of the following gates correspond to the truth table given below? \[ {array}{|c|c|c|} A & B & Y \\ 0 & 0 & 1 \\ 0 & 1 & 0 \\ 1 & 0 & 02008Logic gates
  45. 45The displacement time graph of a particle moving along a straight line is drawn below.2008Graphs of motion in one dimension
  46. 46The intensity of magnetic field due to an isolated pole of strength \(m_p\) at a point distant \(r\) from it will be2008Magnetism and Properties of Magnet
  47. 47Assertion : We cannot think of magnetic field configuration with three poles. Reason : A bar magnet does exert a torque on itself due to its2008Magnetism and Properties of Magnet
  48. 48A converging lens forms a real image \(I\) of an object on its principal axis. A rectangular slab of refractive index \( \) and thickness \(2008Refraction of light from plane surface
  49. 49When white light passes through a prism, the deviation is maximum for2008Prism and Dispersion of Light
  50. 50An object \(5 {~cm}\) tall is placed \(1 {~m}\) from a concave spherical mirror which has a radius of curvature of \(20 {~cm}\). The size of2008Mirror Formula, Reflection in Spherical Mirror
  51. 51The magnifying power of a compound microscope increase with2008Optical Instruments
  52. 52Assertion : The colour of the green flower seen through red glass appears to be dark. Reason : Red glass transmits only red light.2008Prism and Dispersion of Light
  53. 53Assertion: A double convex lens \(( =1.5)\) has focal length \(10 {~cm}\). When the lens is immersed in water \(( =4 / 3)\) its focal length2008Lens Formula, Refraction of light from curved surface
  54. 54If a wire is extended to a new length \(l\), the work done is2008Young’s Modulus and Breaking Stres
  55. 55\(P, Q\) and \(R\) are three coplanar forces acting at a point and are in equilibium. Given : \(P=1.9318 {~kg}\) wt \( [ _1=0.9659 ]\), the 2008Equilibrium of Forces
  56. 56Assertion : Diode lasers are used as optical sources in optical communication. Reason : Diode lasers consume less energy.2008Communication System
  57. 57Assertion : It is essential that all the lines available in the emission spectrum will also be available in the absorption spectrum. Reason 2008Atomic Spectrum
  58. 58A certain gas is taken to the five s t a t e s represented by dots in the graph. The plotted lines are isotherms. Order of the most probable2008Speed of Gas
  59. 59A bullet is fired from a rifle and the rifle recoils. Kinetic energy of rifle is2008Energy
  60. 60Figure shows the variation of energy with the orbit radius \(r\) of a satellite in a circular motion. Mark the correct statement.2008Energy

Zoology

  1. 1When a man inhales air containing normal concentration of \( {O}_2\) as well as \( {CO}\) he suffers from suffocation because2008Human Respiratory System
  2. 2Assertion : Ciliated epithelium is present in the inner lining of trachea and large bronchi. Reason : Ciliary movement propel the mucus and 2008Respiratory Organs
  3. 3Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause2008Cancer
  4. 4Which of the following sets includes all bacterial disease?2008Common Health Disease
  5. 5The binding of antibodies to the antigens to produce a large insoluble complex is known as2008Acquired
  6. 6During the life-cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respect2008Common Health Disease
  7. 7Which one of the following is the correct statement regarding the particular psychotropic drug specified?2008Drug Addiction
  8. 8Assertion : Rabies is acute infectious disease of warm blooded mammals characterised by involvement of central nervous system resulting in p2008Common Health Disease
  9. 9Two opposite forces operate in the growth and development of every population. One of them is related to the ability to reproduce at a given2008Abiotic Factors
  10. 10What is a keystone species?2008Biotic Community
  11. 11One of the major difficulties in the biological control of insect pest is that2008Populations
  12. 12Which of the following statements is incorrect?2008Ecological Adaptations
  13. 13The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?2008Populations
  14. 14Assertion : Koel does not build nest for egg laying. Reason : Koel lays its eggs in the nest of tailor bird.2008Introduction
  15. 15The distance between two genes in a chromosome is measured in cross-over units which represent2008Chromosome Theory of Inheritance
  16. 16How many genome types are present in a typical green plants cell?2008Multiple Alleles / Co-dominance
  17. 17Assertion : Persons suffering from haemophilia fail to produce blood clotting factor VIII. Reason : Prothrombin producing platelets in such 2008Genetic Disorders
  18. 18One common example of simple reflex is2008Parts of Nervous System
  19. 19Injury to vagus nerve in humans is not likely to affect2008Nerve Fibres
  20. 20Assertion : Cephalization is advantageous to an animal. Reason : It improves the appearance of the animal.2008Main Properties of Nervous Tissue
  21. 21Assertion : Rhabdome is present in Palaemon. Reason : Rhabdome has an important role in digestion.2008Sensory Organ
  22. 22Assertion : Pituitary is attached to hypothalamus by a vein. Reason : This attachment is done through a hypophysial portal vein.2008Pituitary Gland
  23. 23Acrosome reaction in sperm is triggered by2008Embryology
  24. 24How many sperms are formed from a secondary spermatocyte?2008Embryology
  25. 25Grey crescent is the area2008Embryology
  26. 26Assertion : In mammals the female secondary sexual characters are developed by gonadotropins. Reason : Gonadotropins are secreted by graafia2008Female Reproductive System
  27. 27The main reason why antibiotics could not solve all the problems of bacteria mediated diseases is2008Application in Medicine
  28. 28In transgenics, expression of transgene in target tissue is determined by2008Genetic Modified Crops
  29. 29You are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provid2008Blood Group
  30. 30Cattle fed with spoilt hay of sweet clover which contains dicumarol2008Blood Group
  31. 31Which one of the following is a matching pair?2008Cardiac Cycle
  32. 32Assertion : Hybridoma cells are shifted to a medium deficient in nutrient which cannot be synthesized by myeloma cells. Reason : This medium2008Separation and Isolation of DNA Fragments
  33. 33Which one of the following pairs is not correctly matched?2008Mammalian Urinary System

Frequently Asked Questions

1.How many questions are in the AIIMS 2008 paper?

This paper has 180 questions in total - 27 from Botany, 60 from Chemistry, 60 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.How is the AIIMS 2008 paper structured?

The AIIMS 2008 paper on MARKS has 180 questions, organised by subject:

  • Botany: 27 questions - 27 single-correct.
  • Chemistry: 60 questions - 60 single-correct.
  • Physics: 60 questions - 60 single-correct.
  • Zoology: 33 questions - 33 single-correct.
4.How difficult is the AIIMS 2008 paper?

Each question on MARKS carries a difficulty rating. Of the 180 rated questions in this paper, 93 (52%) are easy, 65 (36%) are medium and 22 (12%) are hard. Subject wise:

  • Botany: 11 easy, 14 medium, 2 hard
  • Chemistry: 36 easy, 18 medium, 6 hard
  • Physics: 35 easy, 17 medium, 8 hard
  • Zoology: 11 easy, 16 medium, 6 hard
5.Which chapters were asked the most in the AIIMS 2008 paper?

The chapters with the most questions in each subject were:

  • Botany: Morphology of Flowering Plants (3), Anatomy of Flowering Plants (2), and Biological Classification (2).
  • Chemistry: General Organic Chemistry (9), Alcohols Phenols and Ethers (7), and Hydrocarbons (6).
  • Physics: Current Electricity (9), Ray Optics (6), and Magnetic Effects of Current (4).
  • Zoology: Human Health and Diseases (6), Organisms and Populations (6), and Human Reproduction (4).
6.Are there any out-of-syllabus questions in the AIIMS 2008 paper?

Yes. 34 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 2008 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 2008 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.