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AIIMS 2004

Browse the complete Botany, Chemistry, Physics, and Zoology question set from the AIIMS 2004 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 - 83 easy (46%), 73 moderate (41%) and 24 tough (13%). 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 53% easy, 30% moderate, 17% tough; Chemistry 57% easy, 32% moderate, 12% tough; Zoology 33% easy, 60% moderate, 7% tough; Botany 23% easy, 60% moderate, 17% tough.

Botany questions were spread across 14 chapters, with Sexual Reproduction in Flowering Plants (4), Anatomy of Flowering Plants (3), and Biodiversity and its Conservation (3) carrying the most weight. Chemistry questions were spread across 28 chapters, with General Organic Chemistry (6), Chemical Bonding and Molecular Structure (5), and Ionic Equilibrium (5) carrying the most weight. Physics questions were spread across 25 chapters, with Nuclear Physics (7), Magnetic Effects of Current (6), and Semiconductors (5) carrying the most weight. Zoology questions were spread across 14 chapters, with Human Health and Diseases (5), Evolution (4), and Strategies for Enhancement in Food Production (4) carrying the most weight.

Botany

  1. 1The sugarcane plant has2004Transpiration
  2. 2DNA is present in2004Cell Organelles
  3. 3In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through2004Tissue System
  4. 4Companion cells in plants are associated with2004Permanent Tissues
  5. 5Cork cambium results in the formation of cork which becomes impermeable to water due to the accumulation of2004Permanent Tissues
  6. 6Which one feature is common to leech, cockroach and scorpion?2004Basis of Classification
  7. 7Assertion : Tapeworm, roundworm and pinworm are endoparasites of human intestine. Reason : Improperly cooked food is the source of all intes2004Phylum Platyhelminthes
  8. 8Pruning of plants promotes branching because the axillary buds get sensitized to2004Plant Growth Regulators
  9. 9Assertion : Photomodulation of flowering is a phytochrome - regulated process. Reason : Active form of phytochrome (Pfr) directly induces fl2004Plant Growth Regulators
  10. 10The Great Barrier Reef along the east coast of Australia can be categorised as2004Levels of Biodiversity
  11. 11Which one of the following is a pair of endangered species?2004International Efforts for Conserving Biodiversity
  12. 12If the Bengal Tiger becomes extinct2004Conservation of Biodiversity
  13. 13Assertion : Nitrogen-fixing bacteria in legume root nodules survive in oxygen-depleted cells of nodules. Reason : Legheamoglobin completely 2004Nitrogen Metabolism
  14. 14Which one of the following is correctly matched regarding an Institute and its location?2004Viruses
  15. 15The bacteria Pseudomonas aeruginosa is useful because of its ability to2004Introduction
  16. 16Which one of the following categories of organisms do not evolve oxygen during photosynthesis?2004Introduction
  17. 17Assertion : Deficiency of sulphur causes chlorosis in plants. Reason : Sulphur is a constituent of chlorophyll, proteins and nucleic acids.2004Pigments
  18. 18The pollen tube usually enters the embryo sac2004Sexual Reproduction
  19. 19Assertion : The epithelial layer of scutellum of maize is both secretory and absorptive in function. Reason : The epithelial layer secretes 2004Sexual Reproduction
  20. 20Assertion : Insects visit flowers to gather honey. Reason : Attraction of flowers prevents the insects from damaging other parts of the plan2004Sexual Reproduction
  21. 21Assertion : Coconut tree is distributed in coastal areas over a large part of the world. Reason : Coconut fruit can float and get dispersed 2004Sexual Reproduction
  22. 22Which of the following is the largest root parasite?2004Gymnosperms
  23. 23Mossess and ferns are found in moist and shady places because both2004Angiosperms
  24. 24Assertion : Red algae contribute in producing coral reefs. Reason : Some red algae secrete and deposit calcium carbonate over their walls.2004Algae: Thallophytes
  25. 25Nitrogen oxides produced from the emission of automobiles and power plants, are the source of fine air borne particles which lead to2004Pollution
  26. 26Minamata disease was caused due to the consumption of2004Pollution
  27. 27Assertion : Agricultural output increased several times after introduction of DDT. Reason : DDT was the first insecticide used on a wide sca2004Pollution
  28. 28Assertion : Among the primates, chimpanzee is the closest relative of the present day humans. Reason : The banding pattern in the autosome n2004Diversity in the Living World
  29. 29In Ulothrix meiosis takes place in2004Different Phases in Sexual Reproduction
  30. 30Assertion : Ginger has a prostrate-growing rhizome. Reason : Shoot growth is not effected by gravity.2004Types of Asexual Reproduction

Chemistry

  1. 1The compound having only primary hydrogen atoms is2004Conjugation and Aromaticity
  2. 2Preview not available - open to view this question.2004Conjugation and Aromaticity
  3. 3Preview not available - open to view this question.2004Isomerism of Organic Compounds
  4. 4Among the following, the one which reacts most readily with ethanol is2004Electron displacement effects
  5. 5Assertion : Styrene on reaction with gives 2-bromo-2-phenylethane. Reason : Benzyl radical is more stable than alkyl radical.2004Conjugation and Aromaticity
  6. 6Assertion : The of acetic acid is lower than that of phenol. Reason : Phenoxide ion is more resonance stabilised.2004Electron displacement effects
  7. 7Shape of is similar to that of2004Hybridisation and VSEPR Theory
  8. 8The angle is maximum in2004Hybridisation and VSEPR Theory
  9. 9The dipole moment is the highest for2004Dipole moment
  10. 10Which of the following is arranged in the increasing order of enthalpy of vaporization?2004Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  11. 11Assertion : All angle in is greater than but less than . Reason : The lone pair-bond pair repulsion is weaker than bond pair-bond pair repul2004Hybridisation and VSEPR Theory
  12. 12Preview not available - open to view this question.2004Preparation and Properties of Carboxylic Acids
  13. 13For principle quantum number , the total number of orbitals having is2004Quantum mechanical model
  14. 14Assertion : The free gaseous atom has six unpaired electrons. Reason : Half-filled orbital has greater stability.2004Electronic configuration
  15. 15Assertion : Nuclear binding energy per nucleon is in the order . Reason : Binding energy per nucleon increases linearly with difference in n2004Quantum mechanical model
  16. 16Dimethyl glyoxime gives a red precipitate with , which is used for its detection. To get this precipitate readily the best range is2004PH of solutions
  17. 17Among the following the dissociation constant is highest for2004Theories of Acids and Bases
  18. 18What is the of glycine solution? For glycine, and at ?2004PH of solutions
  19. 19Assertion : (III) is not precipitated as sulphide when in its alkaline solution is passed. Reason : The concentration of ion in alkaline med2004Solubility
  20. 20Assertion : Addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution will first precipitate rather than .2004Solubility
  21. 21Which of the following is only acidic in nature?2004Compounds of Alkaline Earth Metals
  22. 22Assertion : is not present in enamel of human teeth. Reason : Mg is an essential element for biological functions of human.2004Alkaline Earth Metals
  23. 23How much energy is released when 6 moles of octane is burnt in air? Given for and respectively are and .2004Laws of Thermochemistry and Enthalpy Change
  24. 24For the equilibrium at 1 atm and ,2004Third law of thermodynamics
  25. 25Assertion : Molar entropy of vaporisation of water is different from ethanol. Reason : Water is more polar than ethanol.2004Entropy and Second law of thermodynamics
  26. 26The element which forms oxides in all oxidation states to is2004Nitrogen and Its Compounds
  27. 27The statement true for is2004Nitrogen and Its Compounds
  28. 28Assertion : is a stronger acid than . Reason : Oxidation state of in is +8 and in .2004Halogens and Its Compounds
  29. 29The liquefied metal expanding on solidification is2004Boron and Its Compounds
  30. 30Which one of the following forms with an excess of (cyanide) a complex having coordination number two?2004Crystal Field Theory
  31. 31Which of the following is not considered as an organometallic compound?2004Carbonyl Compounds
  32. 32Which of the following does not have optical isomer?2004Isomerism of coordination compounds
  33. 33Assertion : The (en = ethylene diamine) has lower stability than . Reason : In the geometry of is trigonal bipyramidal.2004Stability of complex ion
  34. 34Assertion : Aqueous gold colloidal solution is red in colour. Reason : The colour arises due to scattering of light by colloidal gold partic2004Properties of colloidal solution
  35. 35Assertion : Alcohols are dehydrated to hydrocarbons in the presence of acidic zeolites. Reason : Zeolites are porous catalysts.2004Catalysis and Theories of Catalysis
  36. 36Among the following the most reactive towards alcoholic is2004Properties and Preparation of Alkenes
  37. 37Assertion : 2-bromobutane on reaction with sodium ethoxide in ethanol gives 1-butene as a major product. Reason : 1-butene is more stable th2004Properties and Preparation of Alkenes
  38. 38Which of the following statements is true for the electrochemical Daniell cell?2004Commercial Cells and Batteries
  39. 39Assertion : Copper metal gets readily corroded is an acidic aqueous solution. Reason : Free energy change for this process is positive.2004Corrosion
  40. 40The crystal system of a compound with unit cell dimensions and and and is2004Properties and Types of Solids
  41. 41Of the following which change will shift the reaction towards the product?2004Le chatelier's principle
  42. 42The compound insoluble in water is2004Properties of D-block elements
  43. 43The average osmotic pressure of human blood is 7.8 bar at . What is the concentration of an aqueous solution that could be used in the blood2004Colligative Properties and Abnormal Molecular Masses
  44. 44Assertion : The major products formed by heating with are and . Reason : Benzyl cation is more stable than methyl cation.2004Reactions of Alcohols
  45. 45For decolourization of 1 mole of , the moles of required is2004Oxidation and Reduction Reactions
  46. 46The rate constant , for the reaction is . Which equation given below describes the change of with time? and correspond to concentration of i2004Rate law and rate constant
  47. 47Which of the following is a biodegradable polymer?2004Classification of Polymers
  48. 48Assertion : Effusion rate of oxygen is smaller than nitrogen. Reason : Molar mass of nitrogen is smaller than oxygen.2004Mixture of gases
  49. 49The strongest base among the following is2004Preparation and Properties of Amines
  50. 50Aromatic nitriles (ArCN) are not prepared by reaction:2004Preparation and Properties of Amines
  51. 51Melting points are normally the highest for2004Preparation and Properties of Amides
  52. 52The reagent used for the separation of acetaldehyde from acetophenone is2004Tests for aldehyde and ketones
  53. 53The most suitable reagent for the conversion of is2004Method of preparation for both aldehydes and ketones
  54. 54Assertion : Isobutanal does not give iodoform test. Reason : It does not have -hydrogen.2004Tests for aldehyde and ketones
  55. 55The nucleic acid base having two possible binding sites is2004Proteins
  56. 56Assertion : Carboxypeptidase is an exopeptidase. Reason : It cleaves the N-terminal bond.2004Proteins
  57. 57Assertion : Sucrose is a non-reducing sugar. Reason : It has glycosidic linkage.2004Carbohydrates
  58. 58Which of the following imparts green colour to the burner flame?2004Preliminary Tests
  59. 59For electron affinity of halogens which of the following is correct?2004Periodic properties
  60. 60Ozone in stratosphere is depleted by2004Air Pollution

Physics

  1. 1Sodium lamps are used in foggy conditions because2004Polarization of Light
  2. 2A monochromatic beam of light is used for the formation of fringes on the screen by illuminating the two slits in the Young's double slit in2004Youngs Double Slit Experiment
  3. 3When a compact disc is illuminated by a source of white light, coloured lines are observed. This is due to2004Diffraction of Light
  4. 4Assertion : A red object appears dark in the yellow light. Reason : The red colour is scattered less.2004Polarization of Light
  5. 5Assertion : At the first glance, the top surface of the Morpho butterfly's wing appears a beautiful blue-green. If the wing moves the colour2004Interference of Light
  6. 6In an orbital motion, the angular momentum vector is2004Angular momentum and Angular impulse
  7. 7The direction of the angular velocity vector is along2004Uniform Circular Motion
  8. 8moles of a monoatomic gas is carried round the reversible rectangular cycle as shown in the diagram. The temperature at is . The thermodynam2004Heat Engine, Refrigerator and Second Law of Thermodynamics
  9. 9Assertion : Thermodynamic process in nature are irreversible. Reason : Dissipative effects cannot be eliminated.2004Thermodynamic Systems
  10. 10Using mass , length , time and current as fundamental quantities, the dimension of permittivity is2004Dimensions
  11. 11Suppose the sun expands so that its radius becomes 100 times its present radius and its surface temperature becomes half of its present valu2004Radiation
  12. 12Assertion : In a pressure cooker the water is brought to boil. The cooker is then removed from the stove. Now on removing the lid of the pre2004Calorimetry
  13. 13When an electron-positron pair annihilates, the energy released is about2004Nuclear energy
  14. 14The Magnetic Resonance Imaging (MRI) is based on the phenomenon of2004Nuclear structure
  15. 15Carbon dating is best suited for determining the age of fossils if their age in years is of the order of2004Radioactivity
  16. 16The dependence of binding energy per nucleon, on the mass number , is represented by2004Nuclear energy
  17. 17Assertion : from the radioactive fall out from a nuclear bomb ends up in the bones of human beings through the milk consumed by them. It cau2004Radioactivity
  18. 18Assertion : Energy is released in nuclear fission. Reason : Total binding energy of the fission fragments is larger than the total binding e2004Nuclear reactions
  19. 19Assertion : Heavy water preferred over ordinary water as a moderator in reactors. Reason : Heavy water, used for slowing down the neutrons, 2004Nuclear reactions
  20. 20A proton and an -particle, moving with the same velocity, enter into a uniform magnetic field, acting normal to the plane of their motion. T2004Motion of Charged Particle in Magnetic Field
  21. 21Two parallel beams of positrons moving in the same direction will2004Force and Torque on Current Carrying Conductor
  22. 22A circular coil of radius carries an electric current. The magnetic field due to the coil at a point on the axis of the coil located at a di2004Magnetic Field
  23. 23The magnetic field due to a straight conductor of uniform cross-section of radius and carrying a steady current is represented by2004Magnetic Field
  24. 24The magnetic moment of a current carrying circular coil of radius and number of turns (n) varies as2004Magnetic Moment
  25. 25The cyclotron frequency of an electron gyrating in a magnetic field of is approximately2004Motion of Charged Particle in Magnetic Field
  26. 26Eels are able to generate current with biological cells called electroplaques. The electroplaques in an eel are arranged in 100 rows, each r2004Electric Cell or Battery
  27. 27Assertion : A larger dry cell has higher emf. Reason : The emf of a dry cell is proportional to its size.2004Electric Cell or Battery
  28. 28A nucleus of mass number , originally at rest, emits an -particle with speed . The daughter nucleus recoils with a speed2004momentum
  29. 29A bomb of mass explodes in air into two pieces of masses and . The smaller mass goes at a speed of . The total energy imparted to the two fr2004momentum
  30. 30Assertion : There are very small sporadic changes in the period of rotation of the earth. Reason : Shifting of large air masses in the earth2004Motion of satellite
  31. 31Two springs are connected to a block of mass placed on a frictionless surface as shown in the figure. If both the springs have a spring cons2004Time Period and Frequency
  32. 32A capacitor in a defibrillator is charged to . The energy stored in the capacitor is sent through the patient during a pulse of duration . T2004Force and Energy stored in capacitor
  33. 33A photon of energy is incident on a metal surface whose work function is . The minimum reverse potential to be applied for stopping the emis2004Photoelectric Effect
  34. 34Assertion : Photoelectric effect demonstrates the wave nature of light. Reason : The number of photoelectrons is proportional to the frequen2004Photoelectric Effect
  35. 35The electric field due to a uniformly charged sphere of radius as a function of the distance from its centre is represented graphically by2004Electric Field and Electric Field Lines
  36. 36Equipotential surfaces associated with an electric field which is increasing in magnitude along the -direction are2004Electric Potential and Potential Energy
  37. 37In the basic crystal structure, and ions are arranged in a bcc configuration as shown in the figure. The net electrostatic force exerted by 2004Electric Charge and Coulomb's law
  38. 38The waves produced by a motorboat sailing in water are2004Basics of Mechanical Waves
  39. 39An organ pipe closed at one end has fundamental frequency of . The maximum number of overtones generated by this pipe which a normal person 2004Organ Pipe (Vibration of Air Column)
  40. 40A sphere of mass and radius is falling in a viscous fluid. The terminal velocity attained by the falling object will be proportional to2004Viscosity
  41. 41In old age arteries carrying blood in the human body become narrow resulting in an increase in the blood pressure. This follows from2004Hydrodynamics
  42. 42Assertion : Smaller drops of liquid resist deforming forces better than the larger drops. Reason : Excess pressure inside a drop is directly2004Surface tension
  43. 43Assertion : Crystalline solids can cause X-rays to diffract. Reason : Interatomic distance in crystalline solids is of the order of .2004X-Rays
  44. 44The temperature dependence of resistivity of a semiconductor is represented by2004Semiconductors
  45. 45Which logic gate is represented by the following combination of logic gates?2004Logic gates
  46. 46A Ge specimen is doped with . The concentration of acceptor atoms is atoms . Given that the intrinsic concentration of electron-hole pairs i2004Semiconductors
  47. 47Assertion : In a transistor the base is made thin. Reason : A thin base makes the transistor stable.2004Junction Transistors
  48. 48Assertion : A transistor amplifier in common emitter configuration has a low input impedence. Reason : The base to emitter region is forward2004Junction Transistors
  49. 49Which of the following velocity-time graphs shows a realistic situation for a body in motion?2004Graphs of motion in one dimension
  50. 50Liquid oxygen remains suspended between two pole faces of a magnet because it is2004Magnetic Materials and their Properties
  51. 51Assertion : The true geographic north direction is found by using a compass needle. Reason : The magnetic meridian of the earth is along the2004Earths magnetic field
  52. 52Assertion : A disc-shaped magnet is leviated above a superconducting material that has been cooled by liquid nitrogen. Reason : Superconduct2004Magnetic Materials and their Properties
  53. 53An object is immersed in a fluid. In order that the object becomes invisible, it should2004Refraction of light from plane surface
  54. 54An endoscope is employed by a physician to view the internal parts of a body organ. It is based on the principle of2004Critical angle and total internal reflection
  55. 55We wish to see inside an atom. Assuming the atom to have a diameter of , this means that one must be able to resolve a width of say . If an 2004Optical Instruments
  56. 56Assertion : A famous painting was painted by not using brush strokes in the usual manner, but rather a myriad of small colour dots. In this 2004Human eye
  57. 57Assertion : The driver in a vehicle moving with a constant speed on a straight road is in a noninertial frame of reference. Reason : A refer2004Newton's laws of motion
  58. 58Assertion : In He-Ne laser, population inversion takes place between energy levels of neon atoms. Reason : Helium atoms have a meta-stable e2004Atomic Spectrum
  59. 59and are root mean square, average and most probable speeds of molecules of a gas obeying Maxwellian velocity distribution. Which of the foll2004Speed of Gas
  60. 60Assertion : The melting point of ice decreases with increase of pressure. Reason : Ice contracts on melting.2004Gas Laws

Zoology

  1. 1Assertion : From evolutionary point of view, human gestation period is believed to be shortening. Reason : One major evolutionary trend in h2004Locomotion
  2. 2Which one of the following is a matching pair of a drug and its category?2004Drug Abuse
  3. 3Electron beam therapy is a kind of radiation therapy to treat2004Cancer
  4. 4Severe Acute Respiratory Syndrome (SARS)2004Common Health Disease
  5. 5The treatment of snake-bite by antivenom is an example of2004Acquired Immunity
  6. 6Assertion : Dope test is used to estimate the level of blood alcohol by analysing the breath of persons drinking alcohol. Reason : A drunken2004Addiction and Dependence
  7. 7Assertion : Animals adopt different strategies to survive in hostile environment. Reason : Praying mantis is green in colour which merges wi2004Branches of Ecology
  8. 8A baby has been born with a small tail. It is a case exhibiting2004Process or Mechanism of Evolution
  9. 9Potato and sweet potato2004Evidences of Evolution
  10. 10Assertion : Coacervates are believed to be the precursors of life. Reason : Coacervates were self-duplicating aggregates of proteins surroun2004Origin of Universe and Life
  11. 11Assertion : Natural selection is the outcome of differences in survival and reproduction among individuals that show variation in one or mor2004Evidences of Evolution
  12. 12Given below is a pedigree chart of a family with five children. It shows the inheritance of attached ear-lobes as opposed to the free ones. 2004Genetic Disorders
  13. 13Given below is a representation of a kind of chromosomal mutation. What is the kind of mutation represented?2004Mutation
  14. 14How many different types of gametes can be formed by progeny, resulting from the following cross: aa bb cc2004F1 and F2 Cross
  15. 15Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that2004The Synapse
  16. 16The total number of nitrogenous bases in human genome is estimated to be about2004Structure of DNA
  17. 17Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?2004Genetic Code
  18. 18Assertion : Diabetes insipidus is marked by excessive urination and too much thirst of water. Reason : Anti-diuretic hormone (ADH) is secret2004Pituitary Gland
  19. 19A lake with an inflow of domestic sewage rich in organic waste may result in2004Sewage Treatment
  20. 20Cultivation of cotton has been much in the news. The prefix Bt means2004Genetic Modified Crops
  21. 21In which one of the following pairs the two items mean one and the same thing?2004Human Circulatory System
  22. 22Cattle fed with spoilt hay of sweet clover which contains dicumarol2004Blood Group
  23. 23An artificial pacemaker is implanted subcutaneously and connected to the heart in patients2004Human Circulatory System
  24. 24An example of gene therapy is2004Principles of Biotechnology
  25. 25What is the firststep in the Southern Blottechnique?2004Separation and Isolation of DNA Fragments
  26. 26Somaclonal variation can be obtained by2004Plant Breeding
  27. 27Assertion : Fish meal is a rich source of protein for cattle and poultry. Reason : Fish meal is produced from non-edible parts of fishes lik2004Fisheries
  28. 28Assertion : The honey bee queen copulates only once in her life time. Reason : The honey bee queen can lay fertilized as well as unfertilize2004Apiculture
  29. 29Assertion : Cattle breeds can be improved by superovulation and embryo transplantation. Reason : Superovulation in high milk-yielding cows i2004Cattle and Buffaloes
  30. 30Women who consumed the drug thalidomide for relief from vomiting during early months of pregnancy gave birth to children with2004Population Explosion and Birth Control

Frequently Asked Questions

1.How many questions are in the AIIMS 2004 paper?

This paper has 180 questions in total - 30 from Botany, 60 from Chemistry, 60 from Physics, and 30 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 2004 paper structured?

The AIIMS 2004 paper on MARKS has 180 questions, organised by subject:

  • Botany: 30 questions - 30 single-correct.
  • Chemistry: 60 questions - 60 single-correct.
  • Physics: 60 questions - 60 single-correct.
  • Zoology: 30 questions - 30 single-correct.
4.How difficult is the AIIMS 2004 paper?

Each question on MARKS carries a difficulty rating. Of the 180 rated questions in this paper, 83 (46%) are easy, 73 (41%) are medium and 24 (13%) are hard. Subject wise:

  • Botany: 7 easy, 18 medium, 5 hard
  • Chemistry: 34 easy, 19 medium, 7 hard
  • Physics: 32 easy, 18 medium, 10 hard
  • Zoology: 10 easy, 18 medium, 2 hard
5.Which chapters were asked the most in the AIIMS 2004 paper?

The chapters with the most questions in each subject were:

  • Botany: Sexual Reproduction in Flowering Plants (4), Anatomy of Flowering Plants (3), and Biodiversity and its Conservation (3).
  • Chemistry: General Organic Chemistry (6), Chemical Bonding and Molecular Structure (5), and Ionic Equilibrium (5).
  • Physics: Nuclear Physics (7), Magnetic Effects of Current (6), and Semiconductors (5).
  • Zoology: Human Health and Diseases (5), Evolution (4), and Strategies for Enhancement in Food Production (4).
6.Are there any out-of-syllabus questions in the AIIMS 2004 paper?

Yes. 37 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 2004 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 2004 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.