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NEET 2012 Screening

Browse the complete Botany, Chemistry, Physics, and Zoology question set from the NEET 2012 Screening 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 200 questions in total - 68 easy (34%), 104 moderate (52%) and 28 tough (14%). That's a fairly typical mix for this exam. By subject: Physics 46% easy, 36% moderate, 18% tough; Chemistry 40% easy, 42% moderate, 18% tough; Zoology 29% easy, 67% moderate, 4% tough; Botany 22% easy, 63% moderate, 16% tough.

Botany questions were spread across 15 chapters, with Biological Classification (7), Anatomy of Flowering Plants (6), and Ecosystem (5) carrying the most weight. Chemistry questions were spread across 23 chapters, with Chemical Bonding and Molecular Structure (4), General Organic Chemistry (4), and Surface Chemistry (4) carrying the most weight. Physics questions were spread across 23 chapters, with Semiconductors (5), Current Electricity (4), and Ray Optics (4) carrying the most weight. Zoology questions were spread across 16 chapters, with Human Health and Diseases (7), Biotechnology - Principles and Processes (6), and Evolution (4) carrying the most weight.

Botany

  1. 1Which one of the following does not differ in E.coli and Chlamydomonas?2012 (Screening)Cell Membranes
  2. 2The cyanobacteria are also referred to as2012 (Screening)Kingdom Monera
  3. 3The highest number of species in the world is represented by2012 (Screening)Kingdom Fungi
  4. 4Which statement is wrong for viruses?2012 (Screening)Viruses
  5. 5Nuclear membrane is absent in2012 (Screening)Kingdom Monera
  6. 6Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?2012 (Screening)Kingdom Fungi
  7. 7Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?2012 (Screening)Kingdom Fungi
  8. 8Maximum nutritional diversity is found in the group2012 (Screening)Kingdom Monera
  9. 9Cycas and Adiantum resemble each other in having2012 (Screening)Gymnosperms
  10. 10Which one of the following is a correct statements?2012 (Screening)Pteridophytes
  11. 11In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are 2012 (Screening)Porifera
  12. 12Placentation in tomato and lemon is2012 (Screening)Phylum Mollusca
  13. 13Cymose inflorescence is present in2012 (Screening)Inflorescence
  14. 14Phyllode is present in2012 (Screening)The Stem
  15. 15Which one of the following is correctly matched?2012 (Screening)The Stem
  16. 16How many plants in the list given below have composite fruits that develop from an inflorescence? Walnut, poppy, radish, fig, pineapple, app2012 (Screening)Inflorescence
  17. 17Vexillary aestivation is characteristic of the family2012 (Screening)The Leaf
  18. 18The common bottle cork is a product of2012 (Screening)Anatomy of Plant Parts
  19. 19Which part would be most suitable for raising virus-free plants for micropropagation?2012 (Screening)Meristematic Tissues
  20. 20Companion cells are closely associated with2012 (Screening)Permanent Tissues
  21. 21Closed vascular bundles lack2012 (Screening)Anatomy of Plant Parts
  22. 22Water containing cavities in vascular bundles are found in2012 (Screening)Anatomy of Plant Parts
  23. 23Gymnosperms are also called soft wood spermatophytes because they lack2012 (Screening)Permanent Tissues
  24. 24During gamete formation, the enzyme recombinase participates during2012 (Screening)Meiosis
  25. 25Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage?2012 (Screening)Meiosis
  26. 26Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. I2012 (Screening)Lipids
  27. 27Which one is the most abundant protein in the animal world?2012 (Screening)Protein
  28. 28Which one out of A-D given below correctly represents the structural formula of the basic amino acid?2012 (Screening)Protein
  29. 29Ribosomal RNA is actively synthesized in2012 (Screening)Cell Organelles
  30. 30What is true about ribosomes?2012 (Screening)Cell Organelles
  31. 31Select the correct statement from the following regarding cell membrane.2012 (Screening)Cell Membranes
  32. 32Which one of the following is correctly matched?2012 (Screening)Means of Transport
  33. 33Which one of the following is wrong statement?2012 (Screening)Role of Micro and Macronutrients
  34. 34Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition?2012 (Screening)Nitrogen Metabolism
  35. 35A nitrogen fixing microbe associated with Azolla in rice fields is2012 (Screening)Nitrogen Metabolism
  36. 36A process that makes important difference between and plants is2012 (Screening)Mechanism of Photosynthesis
  37. 37Best defined function of manganese in green plants is2012 (Screening)Role of Micro and Macronutrients
  38. 38The correct sequence of cell organelles during photorespiration is2012 (Screening)Mechanism of Photosynthesis
  39. 39Both, autogamy and geitonogamy are prevented in2012 (Screening)Sexual Reproduction
  40. 40An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is2012 (Screening)Sexual Reproduction
  41. 41The gynoecium consists of many free pistils in flowers of2012 (Screening)Sexual Reproduction
  42. 42Even in absence of pollinating agents seed-setting is assured in2012 (Screening)Sexual Reproduction
  43. 43The coconut water and the edible part of coconut are equivalent to2012 (Screening)Sexual Reproduction
  44. 44In an area where DDT had been used extensively, the population of birds declined significantly because2012 (Screening)Pollution
  45. 45Which one of the following is a wrong statement?2012 (Screening)Pollution
  46. 46Identify the possible link A in the following food chain Green plant Insect Frog A Eagle2012 (Screening)Functions of Ecosystem
  47. 47Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different leve2012 (Screening)Structure of Ecosystem
  48. 48Which one of the following areas in India, is a hot spot of biodiversity?2012 (Screening)Biodiversity Conservation in India
  49. 49Which one of the following is not a gaseous biogeochemical cycle in ecosystem?2012 (Screening)Cycles Operating
  50. 50Which one of the following is not a functional unit of an ecosystem?2012 (Screening)Structure of Ecosystem
  51. 51The upright pyramid of number is absent in2012 (Screening)Components of Ecosystem

Chemistry

  1. 1Maximum number of electrons in a subshell with and is2012 (Screening)Quantum mechanical model
  2. 2The correct set of four quantum numbers for the valence electron of rubidium atom is2012 (Screening)Quantum mechanical model
  3. 3Identify the wrong statement in the following.2012 (Screening)Atomic Mass and Atomic Size
  4. 4Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?2012 (Screening)Hybridisation and VSEPR Theory
  5. 5Bond order of 1.5 is shown by2012 (Screening)Molecular Orbital Theory
  6. 6Which of the following species contains three bond pairs and one lone pair around the central atom?2012 (Screening)Hybridisation and VSEPR Theory
  7. 7The pair of species with the same bond order is2012 (Screening)Molecular Orbital Theory
  8. 8of each gas and of gas takes 150 and respectively for effusing through a pin hole under the similar conditions. If molecular mass of gas is 2012 (Screening)Mixture of gases
  9. 9In which of the following reactions, standard reaction entropy changes is positive and standard Gibb's energy change decreases sharply with 2012 (Screening)Third law of thermodynamics
  10. 10The enthalpy of fusion of water is . The molar entropy change for the melting of ice at is2012 (Screening)Entropy and Second law of thermodynamics
  11. 11Standard enthalpy of vaporisation for water at is . The internal energy of vaporisation of water at (in is (Assume water vapour to behave li2012 (Screening)Laws of Thermochemistry and Enthalpy Change
  12. 12of a saturated solution of is 12. The value of solubility product of is2012 (Screening)Solubility
  13. 13Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest value?2012 (Screening)PH of solutions
  14. 14Buffer solutions have constant acidity and alkalinity because2012 (Screening)Buffer solutions
  15. 15In which of the following compounds, nitrogen exhibits highest oxidation state?2012 (Screening)Oxidation number
  16. 16A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the2012 (Screening)Oxidation number
  17. 17Which one of the alkali metals, forms only, the normal oxide, on heating in air?2012 (Screening)General Characteristics of Alkali Metals
  18. 18Among the following compounds the one that is most reactive towards electrophilic nitration is2012 (Screening)Attacking reagents
  19. 19The correct order of decreasing acid strength of trichloroacetic acid , trifluoroacetic acid , acetic acid and formic acid is2012 (Screening)Electron displacement effects
  20. 20Which nomenclature is not according to IUPAC system?2012 (Screening)IUPAC Nomenclature
  21. 21In the following reaction,2012 (Screening)Reactions of alkenes
  22. 22Which one of the following statements regarding photochemical smog is not correct?2012 (Screening)Air Pollution
  23. 23A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is . The diameter of the metal atom is2012 (Screening)Cubic system
  24. 24The number of octahedral void per atom present in a cubic close-packed structure is2012 (Screening)Cubic system
  25. 25and are the vapour pressure of pure liquid components, and , respectively of an ideal binary solution. If represents the mole fraction of co2012 (Screening)Solubility and Concentration of Solutions
  26. 26Limiting molar conductivity of is equal to2012 (Screening)Conductance and Conductivity
  27. 27In a reaction, Product, rate is doubled when the concentration of is doubled, and rate increases by a factor of 8 when the concentrations of2012 (Screening)Rate law and rate constant
  28. 28In a zero order reaction for every rise of temperature, the rate is doubled. If the temperature is increased from to , the rate of the react2012 (Screening)Rate of reaction
  29. 29In Freundlich adsorption isotherm, the value of is2012 (Screening)Adsorption isotherms
  30. 30Which one of the following statements is incorrect about enzyme catalysis?2012 (Screening)Catalysis and Theories of Catalysis
  31. 31The ease of adsorption of the hydrated alkali metal ions on an ion-exchange resins follows the order2012 (Screening)Adsorption
  32. 32The protecting power of lyophilic colloidal sol is expressed in terms of2012 (Screening)Properties of colloidal solution
  33. 33Aluminium is extracted from alumina by electrolysis of a molten mixture of2012 (Screening)Extraction of Metals
  34. 34Which one of the following is a mineral of iron?2012 (Screening)Minerals and ores
  35. 35In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with2012 (Screening)Extraction of Metals
  36. 36When gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from2012 (Screening)Halogens and Its Compounds
  37. 37Which of the following statements is not valid for oxoacids of phosphorus?2012 (Screening)Phosphorus and Its Compounds
  38. 38Sulphur trioxide can be obtained by which of the following reaction2012 (Screening)Sulphur and Its Compounds
  39. 39Identify the alloy containing a non-metal as a constituent in it.2012 (Screening)Properties of D-block elements
  40. 40Which of the statements is not true?2012 (Screening)Compounds of Transition Metals
  41. 41Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?2012 (Screening)Werner's theory and Valence Bond Theory
  42. 42Which of the following acids does not exhibit optical isomerism?2012 (Screening)Isomerism of Organic Compounds
  43. 43In the following sequence of reactions, the end product is2012 (Screening)Preparation and Properties of Monohalides
  44. 44Predict the products in the given reaction,2012 (Screening)Chemical reactions for aldehydes and ketones
  45. 45Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is2012 (Screening)Chemical reactions for aldehydes and ketones
  46. 46and can be distinguished chemically by2012 (Screening)Tests for Aldehyde and Ketones
  47. 47Which one of the following is not a condensation polymer?2012 (Screening)Classification of Polymers
  48. 48Which of the following statements is false?2012 (Screening)Preparation and Properties of Polymers
  49. 49Deficiency of vitamin causes the disease2012 (Screening)Vitamins
  50. 50Which one of the following sets of monosaccharides forms sucrose?2012 (Screening)Disaccharides and Polysaccharides

Physics

  1. 1The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are2012 (Screening)Units
  2. 2A particle has initial velocity and acceleration . The magnitude of velocity after will be2012 (Screening)Uniform Motion
  3. 3The motion of a particle along a straight line is described by equation where, is in metre and in second. The retardation of the particle wh2012 (Screening)Non-uniform Motion
  4. 4The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is2012 (Screening)Projectile motion
  5. 5A car of mass negotiates a banked curve of radius on a frictionless road. If the banking angle is , the speed of the car is2012 (Screening)Non-uniform Circular Motion
  6. 6A solid cylinder of mass is rolling on a horizontal surface with velocity . It collides with a horizontal spring of force constant . The max2012 (Screening)Spring force
  7. 7The potential energy of a particle in a force field is , where and are positive constants and is the distance of particle from the centre of2012 (Screening)Energy
  8. 8Two persons of masses and respectively, are at the opposite ends of a boat. The length of the boat is and weighs . The man walks up to the m2012 (Screening)Centre of mass of discrete particles
  9. 9Two spheres and of masses and respectively collide. is at rest initially and is moving with velocity along -axis. After collision has a velo2012 (Screening)Collisions
  10. 10When a mass is rotating in a plane about a fixed point, its angular momentum is directed along2012 (Screening)Angular momentum and Angular impulse
  11. 11The height at which the weight of a body becomes th, its weight on the surface of earth (radius ), is2012 (Screening)Acceleration Due to Gravity
  12. 12A spherical planet has a mass and diameter . A particle of mass falling freely near the surface of this planet will experience an accelerati2012 (Screening)Acceleration Due to Gravity
  13. 13A geostationary satellite is orbiting the earth at a height of above that surface of the earth, being the radius of the earth. The time peri2012 (Screening)Kepler laws
  14. 14If the radius of a star is and it acts as a black body, what would be the temperature of the star, in which the rate of energy production is2012 (Screening)Radiation
  15. 15Liquid oxygen at is heated to at constant pressure of 1 atm. The rate of heating is constant. Which one of the following graphs represents t2012 (Screening)Calorimetry
  16. 16A thermodynamic system is taken through the cycle as shown in figure. Heat rejected by the gas during the cycle is2012 (Screening)Thermodynamic Processes
  17. 17One mole of an ideal gas goes from an initial state to final state via two processes. It first undergoes isothermal expansion from volume to2012 (Screening)Thermodynamic Processes
  18. 18When a string is divided into three segments of lengths and , the fundamental frequencies of these three segments are , and respectively. Th2012 (Screening)Vibration of String
  19. 19Two sources of sound placed close to each other, are emitting progressive waves given by An observer located near these two sources of sound2012 (Screening)Beats
  20. 20An electric dipole of moment is placed in an electric field of intensity . The dipole acquires a position such that the axis of the dipole m2012 (Screening)Electric Dipole
  21. 21Four point charges and are placed, one at each corner of the square. The relation between and for which the potential at the centre of the s2012 (Screening)Electric Potential and Potential Energy
  22. 22is an equilateral triangle with as its centre. and represent three forces acting along the sides and respectively. If the total torque about2012 (Screening)Torque
  23. 23What is the flux through a cube of side if a point charge of is a one of its corner?2012 (Screening)Electric Flux and Gauss Law
  24. 24A millivoltmeter of range is to be converted into an ammeter of 25 A range. The value (in ohm) of necessary shunt will be2012 (Screening)Electric Instruments
  25. 25In the circuit shown the cells and have negligible resistances. For , and the galvanometer (G) shows no deflection. The value of is2012 (Screening)Kirchoffs Laws
  26. 26If voltage across a bulb rated drops by of its rated value, the percentage of the rated value by which the power would decrease is2012 (Screening)Electric Power and Heating Effect of Current
  27. 27A ring is made of a wire having a resistance . Find the points and , as shown in the figure, at which a current carrying conductor should be2012 (Screening)Resistance and Resistivity
  28. 28A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It2012 (Screening)Earths magnetic field
  29. 29Two similar coils of radius are lying concentrically with their planes at right angles to each other. The currents flowing in them are and ,2012 (Screening)Magnetic Field
  30. 30An alternating electric field of frequency , is applied across the dees (radius ) of a cyclotron that is being used to accelerate protons (m2012 (Screening)Motion of Charged Particle in Magnetic Field
  31. 31A coil of resistance is placed in a magnetic field. If the magnetic flux linked with the coil varies with time (sec) as The current in the c2012 (Screening)Magnetic Flux, Faraday's and Lenz law
  32. 32The current in the inductance is varying with time according to the plot shown in figure. Which one of the following is the correct variatio2012 (Screening)Alternating Current, Voltage and Power
  33. 33In an electrical circuit and an voltage source are all connected in series. When is removed from the circuit, the phase difference between t2012 (Screening)Quality and Power Factor
  34. 34The electric field associated with an electro magnetic wave in vacuum is given by , where , and are in volt/m, metre and second respectively2012 (Screening)Electromagnetic Waves and Maxwell's equations
  35. 35When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that the l2012 (Screening)Lens Formula, Refraction of light from curved surface
  36. 36A ray of light is incident at an angle of incidence, , on one face of a prism of angle (assumed to be small) and emerges normally from the o2012 (Screening)Prism and Dispersion of Light
  37. 37A concave mirror of focal length is placed at a distance of from a convex lens of focal length . A beam of light coming from infinity and fa2012 (Screening)Combination of Lens and Mirrors
  38. 38The magnifying power of a telescope is 9. When it is adjusted for parallel rays the distance between the objective and eyepiece is . The foc2012 (Screening)Optical Instruments
  39. 39Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to the first excited sta2012 (Screening)Atomic Spectrum
  40. 40An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom acquired as a r2012 (Screening)Atomic Spectrum
  41. 41If the nuclear radius of is , the approximate nuclear radius of in Fermi is2012 (Screening)Nuclear structure
  42. 42A mixture consists of two radioactive materials and with half lives of and respectively. Initially the mixture has of and of . The amount of2012 (Screening)Radioactivity
  43. 43Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is2012 (Screening)Diodes
  44. 44In a CE transistor amplifier, the audio signal voltage across the collector resistance of is . If the base resistance is and the current amp2012 (Screening)Junction Transistors
  45. 45and Si both have same lattice structure, having 4 bonding electrons in each. However, is insulator whereas is intrinsic semiconductor. This 2012 (Screening)Semiconductors
  46. 46Transfer characteristic [output voltage input voltage for a base biased transistor in CE configuration is as shown in the figure. For using 2012 (Screening)Junction Transistors
  47. 47The figure shows a logic circuit with two inputs and and the output . The voltage wave forms across and are as given. The logic circuit gate2012 (Screening)Logic gates
  48. 48A sodium street lamp emits yellow light of wavelength . Assuming it to be efficient in converting electrical energy to light, the number of 2012 (Screening)Photoelectric Effect
  49. 49Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive mate2012 (Screening)Photoelectric Effect
  50. 50An -particle moves in a circular path of radius in the presence of a magnetic field of . The de-Broglie wavelength associated with the parti2012 (Screening)Matter Waves

Zoology

  1. 1The most abundant prokaryotes helpful to human in making curd from milk and in production of antibiotics are the ones categorized as2012 (Screening)Introduction
  2. 2Pheretima and its close relatives derive nourishment from2012 (Screening)Earthworm
  3. 3Compared to those of humans, the erythrocytes in frog are2012 (Screening)Frog
  4. 4Select the correct statement from the ones given below with respect to Periplaneta americana.2012 (Screening)Cockroach
  5. 5A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in2012 (Screening)Adrenal Gland
  6. 6Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and2012 (Screening)Introduction
  7. 7What is correct to say about the hormone action in humans?2012 (Screening)Introduction
  8. 8A patient brought to a hospital with myocardial infarction is normally immediately given2012 (Screening)Disorders
  9. 9People who have migrated from the planes to an area adjoining Rohtang Pass about six months back2012 (Screening)Regulation of Cardiac Activity
  10. 10The human hindbrain comprises three parts, one of which is2012 (Screening)Structure of Human Brain
  11. 11Which part of the human ear plays no role in hearing as such but is otherwise very much required?2012 (Screening)Sensory Organ
  12. 12The maximum amount of electrolytes and water from the glomerular filtrate is reabsorbed in which part of the nephron?2012 (Screening)Mammalian Urinary System
  13. 13Which one of the following is the correct statement for respiration in humans?2012 (Screening)Human Respiratory System
  14. 14Select the correct statement regarding the specific disorder of muscular or skeletal system.2012 (Screening)Locomotion
  15. 15What is the figure given below showing in particular?2012 (Screening)Population Explosion and Birth Control
  16. 16The test-tube baby programme employs which one of the following techniques?2012 (Screening)Infertility
  17. 17Which one of the following statements is false in respect of viability of mammalian sperm?2012 (Screening)Embryology
  18. 18Signals for parturition originate from2012 (Screening)Female Reproductive System
  19. 19In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was2012 (Screening)Female Reproductive System
  20. 20The Leydig cells as found in the human body are the secretory source of2012 (Screening)Male Reproductive System
  21. 21PCR and Restriction Fragment Length Polymorphism are the methods for2012 (Screening)DNA Fingerprinting
  22. 22Which one of the following is not a part of a transcription unit in DNA?2012 (Screening)Transcription
  23. 23If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA strand sequence?2012 (Screening)Transcription
  24. 24Removal of introns and joining of exons in a defined order during transcription is called2012 (Screening)Translation
  25. 25A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. 2012 (Screening)Blood Group
  26. 26A normal-visioned man whose father was colour blind, marries a woman whose father was also colourblind. They have their first child as a dau2012 (Screening)Genetic Disorders
  27. 27generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as . It represents a case of2012 (Screening)Incomplete Dominance
  28. 28Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as2012 (Screening)Evidences of Evolution
  29. 29Which one of the following options gives one correct example each of convergent evolution and divergent evolution?2012 (Screening)Process or Mechanism of Evolution
  30. 30What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?2012 (Screening)Human Evolution
  31. 31The extinct human who lived 100000 to 40000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating 2012 (Screening)Human Evolution
  32. 32Motile zygote of Plasmodium occurs in2012 (Screening)Common Health Disease
  33. 33Widal test is carried out to test2012 (Screening)Common Health Disease
  34. 34Common cold differs from pneumonia in, that2012 (Screening)Common Health Disease
  35. 35Which one of the following is not a property of cancerous cells, whereas the remaining three are?2012 (Screening)Cancer
  36. 36In which one of the following options the two examples are correctly matched with their particular type of immunity?2012 (Screening)Innate
  37. 37Anxiety and eating spicy food together in an otherwise normal human, may lead to2012 (Screening)Common Health Disease
  38. 38Cirrhosis of liver is caused by the chronic intake of2012 (Screening)Alcoholism
  39. 39Measuring Biochemical Oxygen Demand (BOD) is a method used for2012 (Screening)Sewage Treatment
  40. 40Monascus purpureus is a yeast used commercially in the production of2012 (Screening)Products
  41. 41Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin-A deficiency?2012 (Screening)Genetic Modified Crops
  42. 42Which one is a true statement regarding DNA polymerase used in PCR?2012 (Screening)Separation and Isolation of DNA Fragments
  43. 43Yeast is used in the production of2012 (Screening)Products
  44. 44For transformation, microparticles coated with DNA to be bombarded with gene gun are made up of2012 (Screening)Tools of Recombinant DNA Technology
  45. 45Which one of the following is an example of carrying out blological control of pests/diseases using microbes?2012 (Screening)Genetic Modified Crops
  46. 46The figure below is the diagrammatic representation of the . coli vector pBR 322 . Which one of the given options correctly identifies its c2012 (Screening)Conceptual Development of Genetic Engineering
  47. 47Removal of RNA polymerase III from nucleoplasm will affect the synthesis of2012 (Screening)Tools of Recombinant DNA Technology
  48. 48A single strand of nucleic acid tagged with a radioactive molecule is called2012 (Screening)Principles of Biotechnology
  49. 49Which one of the following is a case of wrong matching?2012 (Screening)Conceptual Development of Genetic Engineering

Frequently Asked Questions

1.How many questions are in the NEET 2012 Screening paper?

This paper has 200 questions in total - 51 from Botany, 50 from Chemistry, 50 from Physics, and 49 from Zoology.

2.Can I practise questions from just one subject?

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

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

The NEET 2012 Mains paper is listed separately - you can switch to it from the "NEET Paper Wise PYQs" panel, under NEET 2012.

4.What is the structure of the NEET 2012 Screening paper?

The NEET 2012 Screening paper on MARKS has 200 questions, organised by subject:

  • Botany: 51 questions - 51 single-correct.
  • Chemistry: 50 questions - 50 single-correct.
  • Physics: 50 questions - 50 single-correct.
  • Zoology: 49 questions - 49 single-correct.
5.What is the difficulty level of the NEET 2012 Screening paper?

Each question on MARKS carries a difficulty rating. Of the 200 rated questions in this paper, 68 (34%) are easy, 104 (52%) are medium and 28 (14%) are hard. Subject wise:

  • Botany: 11 easy, 32 medium, 8 hard
  • Chemistry: 20 easy, 21 medium, 9 hard
  • Physics: 23 easy, 18 medium, 9 hard
  • Zoology: 14 easy, 33 medium, 2 hard
6.Which chapters had the most questions in the NEET 2012 Screening paper?

The chapters with the most questions in each subject were:

  • Botany: Biological Classification (7), Anatomy of Flowering Plants (6), and Ecosystem (5).
  • Chemistry: Chemical Bonding and Molecular Structure (4), General Organic Chemistry (4), and Surface Chemistry (4).
  • Physics: Semiconductors (5), Current Electricity (4), and Ray Optics (4).
  • Zoology: Human Health and Diseases (7), Biotechnology - Principles and Processes (6), and Evolution (4).
7.Are there any out-of-syllabus questions in the NEET 2012 Screening paper?

Yes. 35 of the 200 questions in this paper are marked on MARKS as outside the current syllabus. You can still practise them for the concept, but they are a lower priority if you are short on time.

8.Where can I find the solutions for the NEET 2012 Screening paper?

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

9.How should I use the NEET 2012 Screening paper to check my preparation?

Set a timer, attempt the 200 questions as you would in the exam, and only then open the answers. Note which subjects and chapters cost you the most marks, and revise those first using the chapter-wise practice for NEET. Repeating this with other papers shows whether the same weak spots keep coming back.

10.Will the NEET 2012 Screening paper help me prepare for NEET 2027?

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