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NEST (NISER) 2012

Browse the complete Biology, Chemistry, Mathematics, and Physics question set from the NEST (NISER) 2012 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 55 questions in total - 5 easy (9%), 45 moderate (82%) and 5 tough (9%). That's a fairly typical mix for this exam. By subject: Biology 14% easy, 86% moderate, 0% tough; Chemistry 14% easy, 71% moderate, 14% tough; Mathematics 7% easy, 86% moderate, 7% tough; Physics 0% easy, 85% moderate, 15% tough.

Biology questions were spread across 10 chapters, with Molecular Basis of Inheritance (4), Principles of Inheritance and Variation (2), and Biotechnology - Principles and Processes (1) carrying the most weight. Chemistry questions were spread across 11 chapters, with Biomolecules (2), Haloalkanes and Haloarenes (2), and p Block Elements (Group 15, 16, 17 & 18) (2) carrying the most weight. Mathematics questions were spread across 12 chapters, with Functions (3), Application of Derivatives (1), and Area Under Curves (1) carrying the most weight. Physics questions were spread across 12 chapters, with Wave Optics (2), Atomic Physics (1), and Electrostatics (1) carrying the most weight.

Biology

  1. 1Desert animals need to conserve water. Kidneys regulate the concentration of salt and water in blood through the formation and excretion of 2012Mammalian Urinary System
  2. 2In an in vitro transcription experiment, the transcript and both the strands of DNA were separated and analyzed for their base composition. 2012Transcription
  3. 3Telomeres are nucleotide sequences at the ends of DNA molecules of eukaryotic cells. Since linear chromosomal DNA gets shortened naturally a2012Replication
  4. 4The results obtained after following the experimental design of Meselson and Stahl to study DNA replication are shown in the adjacent figure2012Replication
  5. 5The endosymbiotic theory of evolution is based on a phenomenon in which one organism engulfs another but does not digest it. Both organisms 2012Cell Organelles
  6. 6Below is a generalized representation of the process of anaerobic cellular respiration. Which molecules represent X, Y, Z, respectively?2012Glycolysis
  7. 7The graph below depicts serum antibody levels in a child after vaccination. Which antibody types do the curves A and B represent, respective2012Acquired immunity
  8. 8Insectivorous plants have evolved an ability to capture and digest insects in addition to their ability to photosynthesize. Which of the fol2012Nitrogen Metabolism
  9. 9An operon comprises of regulatory DNA sequences such as activator and repressor binding sites near the promoter and controls the transcripti2012Regulation of Gene Expression
  10. 10E. coli is a bacterium that is routinely used in cloning experiments and can be grown on artificially synthesized media in the laboratory. O2012Tools of Recombinant DNA Technology
  11. 11The phenomenon of "linked genes" contradicts which of the following fundamental principles of genetics?2012Mendel's Laws of Inheritance
  12. 12Birth records of 4 babies were mixed up in a hospital. The ABO blood groups of the four babies were known to be and O . To determine their r2012Multiple Alleles / Co-dominance
  13. 13Flowering plants can reproduce either sexually (through fusion of haploid gametes that are produced following meiotic divisions in reproduct2012Sexual Reproduction
  14. 14Presynaptic neurons generate nerve impulses (action potentials) which are transmitted to the postsynaptic neuron via synapses (junctions). P2012The Synapse

Chemistry

  1. 1The probability distribution for the speed of molecules for an ideal gas at temperature , is given by where is the mass of a molecule and is2012Kinetic theory of gases
  2. 2For the complete electrolysis of 1 mole of water using a voltage of 100 V across two electrodes, the minimum amount of electrical energy (in2012Cells and Electrode Potential, Nernst Equation
  3. 3The correct order of acidity of the following compounds is2012Halogens and Its Compounds
  4. 4The relative stabilities of , and are2012Molecular Orbital Theory
  5. 5Which of the following pentachlorides does not exist?2012Nitrogen and Its Compounds
  6. 6Naphthalene is an aromatic compound and is the largest single component of coal tar. To prove the structure of naphthalene, Graebe (1869) ca2012Preparation and Properties of Benzene
  7. 7A reaction , follows first order kinetics with respect to each reactant, with an overall rate constant, . The initial concentrations of A an2012Rate law and rate constant
  8. 8The IUPAC name of the following compound is2012IUPAC Nomenclature
  9. 9The number and type of interstices present in a cubic closed-pack structure of atoms are2012Cubic system
  10. 10Consider the four compounds (a) - (d) Each of them is subjected to the treatment of the following sequence of reagents: (i) Mg , ether (ii) 2012Grignard Reagent
  11. 11A mixture of two isomeric pentoses on reaction with hydroxylamine gives 5 millimoles of a mixture of oximes. The same mixture of pentoses on2012Carbohydrates
  12. 12The structure of the most predominant species present in the aqueous solution of serine (a natural amino acid) at pH 1 is2012Properties and Preparation of Amino Acids
  13. 13Boron is a fairly rare element. However, it has many important applications. It is a nonmetal and has a very high melting point of . It is e2012Boron and Its Compounds
  14. 14The energy profiles for the two possible mechanisms of the following reaction, are given below Consider the following substrates (I to IV) f2012Preparation and Properties of Monohalides

Mathematics

  1. 1The domain and range of the function are respectively,2012Domain
  2. 2If is a polynomial function which is odd, then2012Odd and Even Functions
  3. 3If then2012Definite Integration by Parts
  4. 4then2012Inverse of a Matrix
  5. 5Let denote the set . Then,2012Questions on number of relations and sets
  6. 6The number of ways of choosing 2 boys and 2 girls in a class for a game of mixed doubles is 1620 . Then, the number of ways of choosing 2 st2012Combination
  7. 7For any real number belonging to the open interval consider the quadratic equation in . Let denote the roots of ., Then2012Relation between Roots and Coefficients
  8. 8For with , the value of is2012Geometric Progression
  9. 9In the figure, PQRS is a square of side length 12 and XPQ is a traingle constructed on outwardly such that . If area of the figure is 192 , 2012Area of Curve along axis
  10. 10The composite function is a constant function if2012Composite Function
  11. 11Let be points on the same side of a straight line in a plane. Suppose P is a point on such that is the minimum. Then2012Maxima Minima
  12. 12For any real number , let denote the largest integer less than or equal to and . If are real numbers, then which of the following statements2012Inequalities
  13. 13A fair coin is repeatedly tossed. Let be the event that we get at least 2 heads in 4 tosses and be the event that we get at least 3 heads in2012Bernoulli Trial and Binomial Distribution
  14. 14The examination co-ordinator of NEST-2011 said "it is not true that some candidates of NEST-2011 neither attempted Mathematics nor attempted2012Mathematical Reasoning

Physics

  1. 1A thin ring, a disk and an annular cylinder, of same mass , are released from a point 3.6 m from the ground up an inclined plane of inclinat2012Moment of inertia of rigid bodies
  2. 2A hot-air balloon is rising vertically with a constant velocity of . An object is dropped from the balloon when it is 60 m above the ground.2012Uniform Motion
  3. 3A tape is wound tightly around a cylinder of radius 1 cm . After winding, the radius of the cylinder is found to be 2 cm . If the length of 2012Multiplication of Vectors
  4. 4A massless rod of length is hanging from a horizontal ceiling with help of two wires, of equal length and diameter, attached to the ends of 2012Young’s Modulus and Breaking Stres
  5. 5Two coherent point radio sources and , separated by a distance , are radiating radio waves of wavelength . A detector is moved in the plane 2012Youngs Double Slit Experiment
  6. 6Water in a dam is 15 m deep. A horizontal pipe of 4 cm diameter passes through the wall of the dam 6 m below the surface of the water. A plu2012Pressure and thrust
  7. 7Consider a 3-level system with energies and in ascending order. and are the wavelengths of radiation corresponding to the transitions and re2012Bohr's Atomic Model
  8. 8A uniformly charged sphere, of total charge , is expanding uniformly about its center. The magnitude of the electric field at a point from t2012Electric Field and Electric Field Lines
  9. 9and are two radioactive substances. The half-life of is same as the average life of . The decay constant of is 3.33 per day. (assume )2012Radioactivity
  10. 10Mean free path of cosmic ray proton in water at is . If water is cooled to , then the change in mean free path in water2012Thermal Expansion
  11. 11Two concentric, coplanar rigid circular rings of radii and carry currents of magnitude and respectively, in opposite directions. Choose the 2012Magnetic Field
  12. 12A disk of mass and radius is attached to a spring of constant as shown in the figure below. The disk rolls back and forth without slipping. 2012Applications of SHM
  13. 13Light of intensity is incident on air-water interface with an incident angle . The angle between the refracted and the reflected beams is . 2012Polarization of Light

Frequently Asked Questions

1.How many questions are in the NEST (NISER) 2012 paper?

This paper has 55 questions in total - 14 from Biology, 14 from Chemistry, 14 from Mathematics, and 13 from Physics.

2.Can I practise questions from just one subject?

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

3.How is the NEST (NISER) 2012 paper structured?

The NEST (NISER) 2012 paper on MARKS has 55 questions, organised by subject:

  • Biology: 14 questions - 10 single-correct and 4 multiple-correct.
  • Chemistry: 14 questions - 10 single-correct and 4 multiple-correct.
  • Mathematics: 14 questions - 10 single-correct and 4 multiple-correct.
  • Physics: 13 questions - 10 single-correct and 3 multiple-correct.
4.How difficult is the NEST (NISER) 2012 paper?

Each question on MARKS carries a difficulty rating. Of the 55 rated questions in this paper, 5 (9%) are easy, 45 (82%) are medium and 5 (9%) are hard. Subject wise:

  • Biology: 2 easy, 12 medium, 0 hard
  • Chemistry: 2 easy, 10 medium, 2 hard
  • Mathematics: 1 easy, 12 medium, 1 hard
  • Physics: 0 easy, 11 medium, 2 hard
5.Which chapters were asked the most in the NEST (NISER) 2012 paper?

The chapters with the most questions in each subject were:

  • Biology: Molecular Basis of Inheritance (4) and Principles of Inheritance and Variation (2).
  • Chemistry: Biomolecules (2), Haloalkanes and Haloarenes (2), and p Block Elements (Group 15, 16, 17 & 18) (2).
  • Mathematics: Functions (3).
  • Physics: Wave Optics (2).
6.Where can I find the solutions for the NEST (NISER) 2012 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.

7.How should I use the NEST (NISER) 2012 paper to check my preparation?

Set a timer, attempt the 55 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 NEST (NISER). Repeating this with other papers shows whether the same weak spots keep coming back.

8.Will the NEST (NISER) 2012 paper help me prepare for NEST (NISER) 2027?

Yes. Every past paper shows the question styles and topics NEST (NISER) 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.