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NEST (NISER) 2015

Browse the complete Biology, Chemistry, Mathematics, and Physics question set from the NEST (NISER) 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 71 questions in total - 8 easy (11%), 58 moderate (82%) and 5 tough (7%). That's a fairly typical mix for this exam. By subject: Biology 28% easy, 72% moderate, 0% tough; Chemistry 6% easy, 88% moderate, 6% tough; Mathematics 6% easy, 83% moderate, 11% tough; Physics 6% easy, 83% moderate, 11% tough.

Biology questions were spread across 12 chapters, with Biomolecules (B) (3), Principles of Inheritance and Variation (3), and Cell - The Unit of Life (2) carrying the most weight. Chemistry questions were spread across 14 chapters, with Hydrocarbons (3), Amines (2), and Aldehydes and Ketones (1) carrying the most weight. Mathematics questions were spread across 16 chapters, with Application of Derivatives (2), Basic of Mathematics (2), and Circle (1) carrying the most weight. Physics questions were spread across 14 chapters, with Thermodynamics (3), Electrostatics (2), and Wave Optics (2) carrying the most weight.

Biology

  1. 1The development of transgenic "Golden Rice" is expected to help children suffering from night blindness by introducing genes that increase t2015Genetic Modified Crops
  2. 2Epinephrine level in blood increases in response to stress. This hormone is known to affect the rate of glycolysis in different organs of th2015Introduction
  3. 3Recessive mutations in some rare genetic disorders can manifest as disease. A couple had four sons and four daughters, of which two sons dev2015Sex Determination
  4. 4Formation of both peptide bonds and glycosidic bonds2015Carbohydrates
  5. 5The biological adaptation that allows frogs to obtain water for their survival during conditions of water scarcity is the2015Ecological Adaptations
  6. 6Stems have played an important role in plant evolution. Their functions have changed and evolved over a period of time. From the list given 2015The Stem
  7. 7The following crosses were performed between parental lines with indicated genotypes. (i) (ii) (iii) (iv) (v) (vi) The above crosses that ar2015Mendel’s Work and Results
  8. 8The cellular structures absent in animal cells are2015Cell Organelles
  9. 9An aquatic plant, Cabomba caroliniana, shows substantial developmental plasticity. The submerged leaves of the plant are feathery (which are2015Growth
  10. 10A bacterial culture grown for 48 hrs in a medium containing radioactive sulphur would incorporate the radiolabel in the tetra-peptide:2015Protein
  11. 11Colostrum (mother's milk produced immediately after child birth) is beneficial for immunity of the human infant because it contains2015Acquired immunity
  12. 12A living cell is characterized by the presence of several cellular structures and molecular processes. The correct statement regarding livin2015Cell Organelles
  13. 13Vitamin B12 is an important vitamin required for normal human body functions. It is produced only by a commensal bacteria present in our int2015Biocontrol Agents
  14. 14Snake venom is often poisonous due to its unusual peptide contents that act as toxins affecting neurons and other organs. The treatment in s2015Acquired
  15. 15In a long-term study of a population of a self-pollinated plant, it was observed that an allele, which significantly enhanced vegetative gro2015Chromosome Theory of Inheritance
  16. 16A graph showing the effect of substrate concentration on enzyme activity is given below. The correct statement(s) is/are:2015Enzymes
  17. 17Light-induced chloroplast movement (chloroplast photorelocation) has fascinated plant biologists since its discovery in the mid-nineteenth c2015Pigments
  18. 18In a cloning experiment using E. coli, a DNA fragment was inserted in an EcoRI restriction site of a plasmid vector that contained the and g2015Tools of Recombinant DNA Technology

Chemistry

  1. 1Cis-dicholoroethylene can be converted to trans-dichloroethylene by irradiation. During the interconversion2015Isomerism of Organic Compounds
  2. 2In the following reactions, X and Y respectively are2015Reactions of alkynes
  3. 3The exact concentration of ions in an aqueous HCl solution of arbitrary concentrati can be obtained from the expression2015Ionic Product of Water
  4. 4Consider the isothermal reversible expansion of an ideal gas and a real (van der Waals) gas, from the same initial volume to the same final 2015Real Gases and Van der Waal's Equation
  5. 5The major product of the following reaction is2015Preparation and Properties of Amines
  6. 6The adsorption of a gas on a solid surface is characterised by an isotherm , where is the volume of the gas adsorbed at a pressure , and is 2015Adsorption isotherms
  7. 7Compound has four possible nuclear mono nitro derivatives. On oxidation it gives which can have three possible mono nitro derivatives. The c2015Reactions of aromatic compounds
  8. 8The most stable Lewis structure of is2015Covalent and Co-ordinate Bonding
  9. 9Boron and nitrogen form bonds analogous to carbon-carbon bonds. For example, compound ammonia borane, , contains bond analogous to the bond 2015Boron and Its Compounds
  10. 10The major product of the following reaction is2015Preparation and Properties of Amines
  11. 11Starting from the rock salt structure, the crystal structure type generated by the removal of all ions of one type is2015Ionic structure
  12. 12Among the complex ions and , the one that shows strongest distortion from regular octahedral structure is2015Crystal Field Theory
  13. 13The major products obtained when a mixture of cyclohexane and cyclopentane is heated to in the presence of Pt are2015Reactions of alkanes
  14. 14The reactivity of the metals and Na follows the order2015General Characteristics of Alkali Metals
  15. 15Consider the following reversible reaction at a particular temperature and pressure, for which the equilibrium constants in terms of mole fr2015Le chatelier's principle
  16. 16Halogenation of ketones is an interesting reaction. For example, it is involved in the preparation of haloforms. Halogenation using molecula2015Chemical reactions for aldehydes and ketones
  17. 17The vapour pressure of three liquids and R , of nearly equal molecular masses is shown as a function of temperature below. The correct state2015Vapour pressure and raoult's law

Mathematics

  1. 1The set of all real numbers on which the function is strictly increasing is:2015Monotonicity
  2. 2Let and be the two foci of the ellipse with . If the latus rectum through subtends at then the eccentricity of the ellipse is2015Equation of Ellipse
  3. 3In a triangle, two of the angles are and and the included side has length . Its circumradius is2015Sine Rule and its application
  4. 4For three arbitrary real numbers the mathematical identity is2015Inequalities
  5. 5Suppose . Then is2015Algebraic and Rational Limits
  6. 6There are 10 black balls in a box. A person picks 5 balls from the box, paints them white and puts them back into the box. Now the person pi2015Classical Definition of Probability
  7. 7Let and be distinct primes. Then the number of positive integer solutions of the equation is2015Divisibility Test
  8. 8Let be three distinct real numbers. The roots of the equation are2015N degree equation
  9. 9Let be a nonempty set and be the set of all subsets of . Define a function such that for and , Then, for and is not equal to2015Questions on Venn Diagram
  10. 10The value of for which the volume of the tetrahedron formed by , and is largest is2015Scalar Triple Product
  11. 11Let be an interior point of a circle , different from its center. The locus of the midpoints of all the chords passing through the point is2015Chord with given Middle Point
  12. 12The trace of a square matrix is defined as the sum of its diagonal entries and is denoted by . If and are two real matrices, then2015Trace of a Matrix
  13. 13Define a function Then is2015Continuity
  14. 14Let be the set of all real numbers and be defined as . The number of times the graph of cuts the -axis between the lines and is2015Properties of Definite Integration
  15. 15Let be the set of all real numbers and be a differentiable function satisfying . If the graph of passes through the origin then2015Limits
  16. 16Let and , where is the largest integer not exceeding . Then2015Range
  17. 17Let be the set of all complex numbers. Consider the function defined by . Then2015Rotation Theorem
  18. 18Suppose , where and are rational numbers. Then equals2015Sum and Difference & Multiple angle Formula

Physics

  1. 1Two balls are projected at different angles from the same place and with the same initial speed of . Both balls have the same range of 216 m2015Projectile motion
  2. 2A Carnot engine is made to operate as a refrigerator. This refrigerator is used to freeze water at to ice at and the heat from the working s2015Heat Engine, Refrigerator and<br>Second Law of Thermodynamics
  3. 3A mass of 1 kg is dropped from a height of 2 m on a horizontal spring board. The vertical spring supporting the board has a spring constant 2015Energy
  4. 4The stress - strain plot for wires made of two materials (I and II) is presented schematically in the accompanying figure. The points and re2015Young’s Modulus and Breaking Stres
  5. 5A body of mass with specific heat at temperature 500 K is brought into contact with an identical body at temperature 100K. The system is iso2015First Law of Thermodynamics
  6. 6Two coherent monochromatic light beams of intensities and interfere in a Young's double slit experimental setup to produce a fringe pattern 2015Interference of Light
  7. 7A wall clock is transparent and can be viewed both from front and rear. The front view is depicted in the figure (only the second hand is sh2015Rotational kinematics
  8. 8The string of a simple pendulum is found to have a mass which is one-tenth that of the pendulum bob. The systematic error in the measurement2015Applications of SHM
  9. 9A long wire carrying current is coplanar with a rectangular loop of wire as shown. What are the directions of the induced current in the loo2015Magnetic Flux, Faraday's and Lenz law
  10. 10The variation of the magnitude of the electric field with radial distance due to a given configuration is depicted in the accompanying figur2015Electric Field and Electric Field Lines
  11. 11The intensity of radiation from a human body is maximum around a certain wavelength. A photon of this wavelength can just excite an electron2015Radiation
  12. 12A tiny bar magnet is kept close to a long current carrying straight wire placed along the axis. When the center of the magnet is at and it i2015Force and Torque on Current Carrying Conductor
  13. 13A point source generates sound at constant frequency . An observer is moving at a constant speed along the line as shown in the figure and t2015Doppler’s Effect
  14. 14A block of mass undergoes a completely inelastic collision with an initially stationary block of mass . Let be the kinetic energy transferre2015Collisions
  15. 15In a Young double slit experiment, the distance between the slits is and the distance of the screen from the slits is 5 cm . An infrared mon2015Youngs Double Slit Experiment
  16. 16The activity of two radioactive nuclei and is plotted on a semi-log graph. The half-life and decay constant of and are and respectively. The2015Radioactivity
  17. 17Two experiments P and Q are performed with water in various states of phases. Both experiments are performed at constant pressures. Heat is 2015Thermodynamic Processes
  18. 18Two positive equal charges are placed symmetrically about the origin on the -axis and kept fixed as shown. Another positive charge is placed2015Electric Charge and Coulomb's law

Frequently Asked Questions

1.How many questions are in the NEST (NISER) 2015 paper?

This paper has 71 questions in total - 18 from Biology, 17 from Chemistry, 18 from Mathematics, and 18 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.What is the structure of the NEST (NISER) 2015 paper?

The NEST (NISER) 2015 paper on MARKS has 71 questions, organised by subject:

  • Biology: 18 questions - 15 single-correct and 3 multiple-correct.
  • Chemistry: 17 questions - 14 single-correct and 3 multiple-correct.
  • Mathematics: 18 questions - 15 single-correct and 3 multiple-correct.
  • Physics: 18 questions - 15 single-correct and 3 multiple-correct.
4.What is the difficulty level of the NEST (NISER) 2015 paper?

Each question on MARKS carries a difficulty rating. Of the 71 rated questions in this paper, 8 (11%) are easy, 58 (82%) are medium and 5 (7%) are hard. Subject wise:

  • Biology: 5 easy, 13 medium, 0 hard
  • Chemistry: 1 easy, 15 medium, 1 hard
  • Mathematics: 1 easy, 15 medium, 2 hard
  • Physics: 1 easy, 15 medium, 2 hard
5.Which chapters had the most questions in the NEST (NISER) 2015 paper?

The chapters with the most questions in each subject were:

  • Biology: Biomolecules (B) (3), Principles of Inheritance and Variation (3), and Cell - The Unit of Life (2).
  • Chemistry: Hydrocarbons (3) and Amines (2).
  • Mathematics: Application of Derivatives (2) and Basic of Mathematics (2).
  • Physics: Thermodynamics (3), Electrostatics (2), and Wave Optics (2).
6.Where can I find the solutions for the NEST (NISER) 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.

7.How should I use the NEST (NISER) 2015 paper to check my preparation?

Set a timer, attempt the 71 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) 2015 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.