AIIMS 2015
Browse the complete Botany, Chemistry, Physics, and Zoology question set from the AIIMS 2015 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 - 116 easy (64%), 29 moderate (16%) and 35 tough (19%). 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 60% easy, 25% moderate, 15% tough; Chemistry 67% easy, 23% moderate, 10% tough; Zoology 72% easy, 0% moderate, 28% tough; Botany 61% easy, 0% moderate, 39% tough.
Botany questions were spread across 13 chapters, with Plant - Growth and Development (4), Plant Kingdom (4), and Animal Kingdom (3) carrying the most weight. Chemistry questions were spread across 30 chapters, with Biomolecules (4), General Organic Chemistry (4), and Solid State (4) carrying the most weight. Physics questions were spread across 27 chapters, with Ray Optics (5), Semiconductors (5), and Thermal Properties of Matter (5) carrying the most weight. Zoology questions were spread across 13 chapters, with Body Fluids and Circulation (4), Human Health and Diseases (4), and Principles of Inheritance and Variation (4) carrying the most weight.
Botany
- 1Match Column - I with Column - II and select the correct option from codes given below.2015Primary and Secondary Metabolites
- 2Cholesterol is a precursor for each of the following except2015Lipids
- 3Assertion : Secondary metabolites are produced in small quantities and their extraction from the plant is difficult and expensive. Reason: S2015Primary and Secondary Metabolites
- 4The checkpoint in cell cycle plays important role in2015M-phase (Mitotic Phase)
- 5Which of the following is the correct floral formula for the floral diagram given below?2015Technical Description of Angiosperm
- 6Assertion : No secondary growth takes place in monocots. Reason : Secondary growth is not related with cambium.2015Secondary Growth
- 7Select the animal that exhibits retrogressive metamorphosis.2015Euchordata
- 8Assertion : Branchiostoma and Balanoglossus are bilaterally symmetrical and triploblastic animals. Reason : They are exclusively marine and 2015Sub Phylum Hemichordata
- 9Assertion : Cephalisation is advantageous to an animal. Reason : It improves the appearance of the animal.2015Basis of Classification
- 10Gibberellins can promote seed germination because of their influence on2015Plant Growth Regulators
- 11Apomixis is2015Seed Germination
- 12Assertion : Plant growth regulators (PGRs) are very important for plant growth and development. Reason : Auxins do not induce flowering in g2015Plant Growth Regulators
- 13Assertion : A correct concentration of auxin and cytokinin is required for the development of root and shoot in a callus. Reason : When the 2015Plant Growth Regulators
- 14One out of the following is not responsible for biodiversity loss.2015Conservation of Biodiversity
- 15Which enzyme helps in transfer of phosphate group from ATP to a carbohydrate?2015Aerobic Respiration
- 16Assertion : Nitrogen is one of the most essential elements of human body. Reason : All types of prokaryotic organisms are able to fix nitrog2015Nitrogen Metabolism
- 17Assertion : Soil particles, particularly clay and organic matter in soil, contain negative charges that attract positively-charged ions such2015According to Their Requirements
- 18The first carbon dioxide fixation product of plants is2015Mechanism of Photosynthesis
- 19Carbon dioxide is necessary for photosynthesis. The chemical used to remove this gas most effectively from entering a control apparatus is2015Mechanism of Photosynthesis
- 20Assertion : In light reaction of photosynthesis, light is required for the functioning of PS I and PS II, and production of NADPH and ATP. R2015Mechanism of Photosynthesis
- 21Primary endosperm nucleus (PEN) is formed by the fusion of2015Sexual Reproduction
- 22Which of the following genera is associated with coralloid roots?2015Gymnosperms
- 23Match the following and select the correct option.2015Pteridophytes
- 24Which of the following groups of algae produces algin?2015Algae: Thallophytes
- 25What is the correct sequence of the formation of female gametophyte in angiosperms?2015Angiosperms
- 26Match the following and select the correct option.2015Pollution
- 27Assertion : BOD of a river polluted by sewage is more than . Reason : Polluted river contains excess of organic matter.2015Pollution
- 28Assertion : Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae. Reason : It is due to biomagni2015Pollution
Chemistry
- 1Lassaigne's test for the detection of nitrogen fails in2015Qualitative analysis of organic compounds
- 2Which of the following compounds is not chiral?2015Isomerism of Organic Compounds
- 3Which of the following is aromatic?2015Conjugation and Aromaticity
- 4Assertion : ion is an ambident nucleophile. Reason : Nucleophiles are electron rich species.2015Attacking reagents
- 5Assertion : Molecular nitrogen is less reactive than molecular oxygen. Reason : The bond length of is shorter than that of oxygen.2015Molecular Orbital Theory
- 6Benzoic acid is treated with lithium aluminium hydride. The compound obtained is2015Preparation and Properties of Acid Derivatives
- 7Assertion: Formic acid reduces mercuric chloride to mercurous chloride on heating, while acetic acid does not. Reason : Formic acid is a str2015Abnormal Behaviour of Formic Acid
- 8-Particles can be detected by using2015Atomic Models
- 9Which of the following arrangement is possible?2015Quantum mechanical model
- 10Assertion : For Balmer series of hydrogen spectrum, the value and . Reason : The value of for a line in Balmer series of hydrogen spectrum h2015Hydrogen spectrum
- 11The pair of amphoteric hydroxides is2015Ionic Product of Water
- 12Assertion: is not soluble in yellow ammonium sulphide. Reason : The common ion effect due to ions reduces the solubility of .2015Solubility
- 13Which of the following has highest hydration energy?2015Alkaline Earth Metals
- 14For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, and correspond to2015Laws of Thermochemistry and Enthalpy Change
- 15Assertion: is soluble in water while is not. Reason : Hydration energy decreases down the group from to and lattice energy remains almost co2015Alkaline Earth Metals
- 16Tincture of iodine is2015Halogens and Its Compounds
- 17on complete hydrolysis produces2015Noble Gases
- 18Addition of group-13 elements to intrinsic semiconductors results in2015Aluminium and Its Compounds
- 19The diamagnetic species is2015Werner's theory and Valence Bond Theory
- 20Amongst the following, the most stable complex is2015Stability of complex ion
- 21Assertion: is a weaker ligand than . Reason : ionizes to give ions in aqueous solution.2015Terminology of coordination compounds
- 22A colloidal solution is kept in dark and is illuminated by a beam of light then, brightness appears at the right angle of direction of light2015Properties of colloidal solution
- 23Assertion: can be used for coagulation of sol. Reason: reacts with to give .2015Properties of colloidal solution
- 24Isopropylbenzene on air oxidation in the presence of dilute acid gives2015Reactions of Benzene
- 25Assertion : Saturated hydrocarbons are chemically less reactive. Reason : All isomeric paraffins have same parent name.2015Properties and Preparation of Alkanes
- 26What is the amount of chlorine liberated when of current is passed for 60 minutes in an aqueous solution of ?2015Cells and Electrode Potential, Nernst Equation
- 27Assertion : Zinc displaces copper from copper sulphate solution. Reason : The of is and that of is .2015Cells and Electrode Potential, Nernst Equation
- 28Which of the following is an amorphous solid?2015Properties and Types of Solids
- 29The and are located in crystal respectively at face-centred cubic lattice points and in2015Cubic system
- 30The yellow colour in crystals is due to2015Crystal Structure of Solids
- 31Assertion : Conductivity of silicon increases by doping it with group-15 elements. Reason : Doping means introduction of small amount of imp2015Electrical and Magnetic properties
- 32One mole of was placed in a vessel of capacity at a certain temperature and the following equilibrium was established. If 0.6 moles of were 2015Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
- 33The amount of precipitated on mixing with will correspond to2015Quantitative measures in chemical equations
- 34How many significant figures are present in 0.0000135 ?2015Significant Figures
- 35Assertion: One mole of contains molecules of sodium chloride. Reason : of also contains molecules of .2015Mole concept
- 36Copper sulphate is dissolved in water containing for making Bordeaux mixture.2015Compounds of Transition Metals
- 37Assertion: is used as primary standard in volumetric analysis. Reason : It has a good solubility in water.2015Compounds of Transition Metals
- 38Assertion: Change in colour of acidic solution of potassium dichromate by breath is used to test drunken drivers. Reason : Change in colour 2015Compounds of Transition Metals
- 39Assertion : Pure iron when heated in dry air is covered with a layer of rust. Reason : Rust has the composition .2015Corrosion
- 40Assertion: Phenol undergoes Kolbe's reaction whereas ethanol does not. Reason : Phenoxide ion is more basic than ethoxide ion.2015Reactions of Phenol
- 41For reaction , when , the rate was found to be . On reducing concentration of to half, the rate changes to . The order of reaction with resp2015Rate law and rate constant
- 42In a decay process changes into . Which process is this?2015Integrated rate laws
- 43Which of the following reactions produces hydrogen?2015Preparation and Properties of Hydrogen
- 44Assertion : has higher boiling point than water. Reason : has stronger dipole-dipole interactions than that shown by water.2015Preparation and Properties of Hydrogen Peroxide
- 45The polymer obtained by the interaction of ethylene glycol and terephthalic acid is2015Preparation and Properties of Polymers
- 46Assertion: Orlon is used as a synthetic fibre. Reason : The monomer of orlon is vinyl chloride.2015Preparation and Properties of Polymers
- 47Assertion: Teflon is chemically inert substance. Reason: Chloroform when treated with antimony trifluoride gives teflon.2015Preparation and Properties of Polymers
- 48What happens when chloroform is left open in air in the presence of sunlight?2015Preparation and Properties of Monohalides
- 49Which of the following is not the correct match?2015Refining of Crude Metal
- 50The composition of carnallite is2015Minerals and ores
- 51The relationship between osmotic pressure at when glucose urea and sucrose are dissolved in of water is2015Colligative Properties and Abnormal Molecular Masses
- 52The reaction of a primary amine with chloroform and ethanolic solution of is called2015Preparation and Properties of Isocyanides
- 53The following conversion is known as2015Chemical reactions for aldehydes and ketones
- 54Lysine is least soluble in water in the range2015Properties and Preparation of Amino Acids
- 55Thymine is2015Nucleic Acids
- 56'Tocopherol' is the chemical name of2015Vitamins
- 57Assertion : Solubility of proteins is minimum at the isoelectric point. Reason : At isoelectric point, protein molecule behaves as a zwitter2015Properties and Preparation of Amino Acids
- 58Colour imparted by compounds to glass is2015Radicals
- 59Which of the following elements will have the highest electron affinity?2015Periodic properties
- 60Which of the following is not a greenhouse gas?2015Air Pollution
Physics
- 1In a certain double slit experimental arrangement, interference fringes of width each are observed when light of wavelength is used. Keeping2015Youngs Double Slit Experiment
- 2An air compressor is powered by a electric motor using a V-belt drive. The motor pulley is in radius, and the tension in the -belt is on one2015Torque
- 3Assertion : A judo fighter in order to throw his opponent on to the mat tries to initially bend his opponent and then rotate him around his 2015Torque
- 4The radii of circular paths of two particles of same mass are in ratio then what will be velocities ratio if they have a constant centripeta2015Uniform Circular Motion
- 5A string long is used to whirl a stone in a vertical circle at a uniform velocity of . What is the tension in the string when the stone is a2015Uniform Circular Motion
- 6The self inductance of a coil having 400 turns is . The magnetic flux through the cross section of the coil corresponding to current is2015Self and Mutual Inductance
- 7Mutual inductance of two coils can be increased by2015Self and Mutual Inductance
- 8Assertion : An emf is induced in a closed loop when magnetic flux is varied. The induced electric field is not a conservative field. Reason 2015Induced Electric Field
- 9A thermodynamic process is carried out from an original state to an intermediate state by the linear process shown in figure. The total work2015First Law of Thermodynamics
- 10Assertion : In an isolated system the entropy increases. Reason : The process in an isolated system is adiabatic only.2015Heat Engine, Refrigerator and Second Law of Thermodynamics
- 11If oficeis added to of water at , then the temperature ofthemixture is (specificheat of water , Latentheatoffusion of ice )2015Calorimetry
- 12A copper ball in radius is heated in a furnace to . If its emissivity is 0.3 , at what rate does it radiate energy?2015Radiation
- 13Assertion: UV radiation causes photo dissociation of ozone into and , thus causing damage to the stratospheric ozone layer. Reason : Ozone h2015Radiation
- 14Assertion : A hollow metallic closed container with small opening maintained at a high temperature can act as a source of black body radiati2015Radiation
- 15Assertion : The conductivity of an electrolyte is very low as compared to a metal at room temperature. Reason : The number density of free i2015Conduction
- 16The half-life of radium is 1600 years. What is the fraction of sample undecayed after 6400 years?2015Radioactivity
- 17Assertion : If a heavy nucleus is split into two medium sized parts, each of the nuclei will have more binding energy per nucleon than the o2015Nuclear energy
- 18The force per unit length between two straight conductors separated by a distance of is . The current in one conductor is and that in the ot2015Force and Torque on Current Carrying Conductor
- 19What is the magnetic field on the axis of a coil of radius carrying current at a distance from the origin?2015Biot-Savart’s Law and Ampere’s Circuital Law
- 20Assertion : When a magnetic dipole is placed in a non uniform magnetic field, only a torque acts on the dipole. Reason : Force would act on 2015Magnetic Dipole
- 21What is the equivalent resistance between and in given figure?2015Combination of Resistances
- 22When a current is passed in a conductor, rise in temperature is observed. If the strength of current is made thrice, rise in temperature wil2015Electric Power and Heating Effect of Current
- 23Motion of an oscillating liquid in a tube is2015Applications of SHM
- 24A capacitor is charged by being connected to a battery. The battery is then disconnected. If the resistance of the dielectric material betwe2015Charging and Discarging of capacitors
- 25de-Broglie wavelength associated with a ball of mass having kinetic energy is2015Matter Waves
- 26Photoelectric effect supports quantum nature of light because2015Photoelectric Effect
- 27A hexagon of side has a charge at each of its vertices. The potential at the centre of the hexagon is2015Electric Potential and Potential Energy
- 28A hemisphere is positively charged uniformly. The electric field at a point on a diameter away from the centre is directed2015Electric Field and Electric Field Lines
- 29A metallic solid sphere is placed in a uniform electric field. Which path, the lines of force follow as shown in figure?2015Electric Field and Electric Field Lines
- 30The equation of a progressive wave is given by where and are in and is in . (1) The amplitude of the wave is . (2) The wavelength of the wav2015Travelling Waves
- 31Assertion : The fundamental frequency of an open organ pipe increases as the temperature is increased. Reason : This is because as the tempe2015Organ Pipe (Vibration of Air Column)
- 32A coil of inductance is connected to a capacitor of capacitance . To what wavelength is this circuit tuned?2015AC Circuits
- 33Viscous force exerted by the liquid flowing between two plates in a streamline flow depends upon the2015Viscosity
- 34The temperature of an object that emits electromagnetic radiation must be2015Electromagnetic Waves and Maxwell's equations
- 35If the plate resistance oftriode valve is and amplification factor is 21 . The mutual conductance will be2015Diodes
- 36The current gain for a transistor working as common-base amplifier is 0.96 . If the emitter current is , then base current is2015Junction Transistors
- 37Assertion : A junction with reverse bias can be used as a photo-diode to measure light intensity. Reason : In a reverse bias condition the c2015Diodes
- 38Assertion : The output voltage and the input voltage of the NOT gate have phase difference. Reason : The logic NOT can be built using diode.2015Logic gates
- 39Assertion : In a common emitter transistor amplifier, the input current is much less than the output current than output impedance. Reason :2015Junction Transistors
- 40A person is standing in an elevator. In which situation he finds himself weightless?2015Motion Under Gravity
- 41The displacement of a body is given to be proportional to the cube of time elapsed. The magnitude of the acceleration of the body is proport2015Non-uniform Motion
- 42Assertion : The speedometer of an automobile measures the average speed of the automobile. Reason : Average velocity is equal to total dista2015Rest and Motion
- 43The temperature of transition from ferromagnetic property to paramagnetic property is called2015Magnetic Materials and their Properties
- 44The angles of dip at the poles and the equator respectively are2015Earths magnetic field
- 45A person uses glasses to have normal vision from onwards. He uses a lens as a simple microscope to see an object. What is the maximum magnif2015Lens Formula, Refraction of light from curved surface
- 46Assertion : In optical fibre, the diameter of the core is kept small. Reason : The smaller diameter of the core ensures that the fibres shou2015Critical angle and total internal reflection
- 47Assertion : The resolving power of a telescope is more if the diameter of the objective lens is more. Reason : Objective lens of large diame2015Optical Instruments
- 48Assertion : The frequencies of incident, reflected and refracted beam of monochromatic light passing from one medium to another are the same2015Reflection of Light from Plane Mirror
- 49Assertion: A secondary rainbow have inverted colours than the primary rainbow. Reason : The secondary rainbow is formed by single total inte2015Critical angle and total internal reflection
- 50For a constant hydraulic stress on an object with bulk modulus , the fractional change in the volume of object will be2015Bulk Modulus
- 51Young's modulus for a steel wire is and its elastic limit is . By how much can a steel wire long and in diameter be stretched before the ela2015Young’s Modulus and Breaking Stres
- 52A mass is tied to the top of two identical poles of height using massless strings of equal length. The mass is at height above the ground at2015Equilibrium of Forces
- 53Assertion : Use of ball bearing between two moving parts of a machine is a common practice. Reason : Ball bearing reduces rolling friction a2015Frictional force
- 54Assertion : Centripetal force is always required for motion in curved path. Reason : On a banked curved track, vertical component of normal 2015Non-uniform Circular Motion
- 55Assertion : Electromagnetic waves with frequencies smaller than the critical frequencies of ionosphere cannot be used for communication usin2015Propagation of EM Waves
- 56Total energy of an electron in hydrogen atoms above leads to2015Atomic Spectrum
- 57Ionisation potential of hydrogen atom is . Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy . The 2015Atomic Spectrum
- 581 mole of gas is contained in a box of volume at . The gas is heated to a temperature of and the gas gets converted to a gas of hydrogen ato2015Gas Laws
- 59A body is moved in straight line by machine with constant power. The distance travelled by it in time duration is proportional to2015Energy
- 60Three bodies, a ring, a solid cylinder and a solid sphere roll down the same inclined plane without slipping. They start from rest. The radi2015Energy
Zoology
- 1Hiccups can be best described as2015Human Respiratory System
- 2Which of the following pathogens is not transmitted by a vector?2015Common Health Disease
- 3Which one of the following is not derived from plants?2015Drug Addiction
- 4Assertion : Mast cells in the human body release excessive amounts of inflammatory chemicals which cause allergic reactions. Reason : Allerg2015Acquired Immunity
- 5Assertion : Filarial worm is transmitted to humans by Culex mosquito. Reason: Culex prefers to breed in fresh water.2015Common Health Disease
- 6Which one of the following is reptilian ancestor of birds?2015Geological Timescale
- 7Assertion: Darwin's finches are a classical example of natural selection. Reason : Darwin explained that the difference in size and shape of2015Evidences of Evolution
- 8In rabbits, the gene for grey fur (G) is dominant over that for black fur (g). In a litter, if 50\% rabbits are grey, then the possible pare2015F1 and F2 Cross
- 9Barr body is missing in the female suffering from2015Genetic Disorders
- 10Which is genetically not possible?2015Genetic Disorders
- 11Barr Body is found in the cytoplasm during2015Genetic Disorders
- 12Mature RBCs lose their ability for2015Blood
- 13Which one of the following is an incorrect combination?2015Structure of DNA
- 14Which organism is used to transfer T-DNA?2015Structure of T-RNA
- 15Which of the following set of options is used in translation?2015Translation
- 16Assertion: The nymph of a cockroach undergoes moulting several times. Reason : There is gradual metamorphosis in cockroach.2015Cockroach
- 17Assertion : Blood in cockroach is colourless haemolymph with no respiratory pigment. Reason : Respiration in cockroach occurs through diffus2015Cockroach
- 18Gonadotropin releasing hormone is transferred to anterior pituitary by2015Hypothalamus
- 19Hormones for the menstrual cycle are produced by2015Female Reproductive System
- 20Select the correct explanation for the labels A, B, C and D.2015Female Reproductive System
- 21Assertion : Parturition is induced by neural signal in maternal pituitary. Reason : At the end of gestation period, the maternal pituitary r2015Female Reproductive System
- 22An example of gene therapy is2015Application in Medicine
- 23When kidney of a person is damaged, he/she invariably suffers from anaemia because2015Cardiac Cycle
- 24A small rise in the body temperature of humans is corrected by (i) sweating (ii) dilating the skin arteries (iii) constricting the skin arte2015Cardiac Cycle
- 25Assertion : and RAAS work in response to low blood volume and blood pressure. Reason : ANF works in response to high blood volume and blood 2015Regulation of Cardiac Activity
- 26Select the correct order of processing of PCR.2015Separation and Isolation of DNA Fragments
- 27Plasmid vector in DNA recombinant technology means2015Tools of Recombinant DNA Technology
- 28Assertion : In recombinant DNA technology, human genes are often transferred into bacteria (prokaryotes) or yeasts (eukaryotes). Reason : Bo2015Tools of Recombinant DNA Technology
- 29Which part of the nephrons is impermeable to water?2015Mammalian Urinary System
- 30Which of the following waste products in grasshopper is not excreted and is used in other metabolic activities?2015Introduction
- 31Match Column - I with Column - II and select the correct option from given codes.2015Plant Breeding
- 32Assertion : GM foods are facing widespread resistance by the people. Reason: GM foods have mutated genes which cause infections and allergie2015Plant Breeding
Frequently Asked Questions
1.How many questions are in the AIIMS 2015 paper?
This paper has 180 questions in total - 28 from Botany, 60 from Chemistry, 60 from Physics, and 32 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 2015 paper structured?
The AIIMS 2015 paper on MARKS has 180 questions, organised by subject:
- Botany: 28 questions - 28 single-correct.
- Chemistry: 60 questions - 60 single-correct.
- Physics: 60 questions - 60 single-correct.
- Zoology: 32 questions - 32 single-correct.
4.How difficult is the AIIMS 2015 paper?
Each question on MARKS carries a difficulty rating. Of the 180 rated questions in this paper, 116 (64%) are easy, 29 (16%) are medium and 35 (19%) are hard. Subject wise:
- Botany: 17 easy, 0 medium, 11 hard
- Chemistry: 40 easy, 14 medium, 6 hard
- Physics: 36 easy, 15 medium, 9 hard
- Zoology: 23 easy, 0 medium, 9 hard
5.Which chapters were asked the most in the AIIMS 2015 paper?
The chapters with the most questions in each subject were:
- Botany: Plant - Growth and Development (4), Plant Kingdom (4), and Animal Kingdom (3).
- Chemistry: Biomolecules (4), General Organic Chemistry (4), and Solid State (4).
- Physics: Ray Optics (5), Semiconductors (5), and Thermal Properties of Matter (5).
- Zoology: Body Fluids and Circulation (4), Human Health and Diseases (4), and Principles of Inheritance and Variation (4).
6.Are there any out-of-syllabus questions in the AIIMS 2015 paper?
Yes. 44 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 2015 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 2015 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.