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IAT (IISER) 2022

Browse the complete Biology, Chemistry, Mathematics, and Physics question set from the IAT (IISER) 2022 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 60 questions in total - 10 easy (17%), 46 moderate (77%) and 4 tough (7%). That's a fairly typical mix for this exam. By subject: Biology 27% easy, 73% moderate, 0% tough; Chemistry 13% easy, 80% moderate, 7% tough; Mathematics 20% easy, 80% moderate, 0% tough; Physics 7% easy, 73% moderate, 20% tough.

Biology questions were spread across 11 chapters, with Principles of Inheritance and Variation (4), Respiration in Plants (2), and Anatomy of Flowering Plants (1) carrying the most weight. Chemistry questions were spread across 13 chapters, with Coordination Compounds (2), Hydrocarbons (2), and Alcohols Phenols and Ethers (1) carrying the most weight. Mathematics questions were spread across 11 chapters, with Application of Derivatives (3), Definite Integration (2), and Vector Algebra (2) carrying the most weight. Physics questions were spread across 13 chapters, with Electrostatics (3), Alternating Current (1), and Current Electricity (1) carrying the most weight.

Biology

  1. 1Match the features of a plant cell listed in Column I with their corresponding examples in Column II. Choose the CORRECT combination from th2022Permanent Tissues
  2. 2Shown below are some of the reactions that occur in the metabolic pathway leading to complete oxidation of glucose during aerobic respiratio2022Glycolysis
  3. 3In a given species of flowering plant, the colour of the seeds is exclusively determined by the colour of its seed coat. Seed coat colour in2022Mendel's Work and Results
  4. 4During the CoVID-19 pandemic, SARS-CoV2 virus mutated multiple times giving rise to many variants. What is the genetic material of the SARS-2022Viruses
  5. 5Lymph is an important body fluid. Choose the INCORRECT statement about the lymph.2022Lymph
  6. 6Interneurons play an important role in the execution of spinal cord-mediated reflex action. Where are these interneurons located?2022Nerve
  7. 7Osmoreceptors are sensitive to changes in ionic concentrations and volumes of body fluids. Which among the following best describes the func2022Introduction
  8. 8A single point mutation in gene ' X ' results in breathing difficulty, hypertension as well as partial sterility. Which among the following 2022Mutation
  9. 9In a cross between individuals of the genotypes PpQQRrSS and ppqqRrSS, what will be the expected number of progenies with the genotype ppQQR2022Mendel's Laws of Inheritance
  10. 10Organisms in which of the following phyla are triploblastic, acoelomate and have bilateral symmetry?2022Phylum Platyhelminthes
  11. 11Consider the following biomes: Tropical Rainforest ; Tundra ; Desert and Coastal zone . Choose the most probable descending order of Net Pri2022Functions of Ecosystem
  12. 12Nine percent of a population cannot taste a certain food item because of a recessive allele of the gene IAT. Assuming the population is in H2022Mendel's Work and Results
  13. 13As opposed to DNA replication within the cell, discontinuous synthesis of DNA does NOT occur in a polymerase chain reaction (PCR). Why?2022Tools of Recombinant DNA Technology
  14. 14Which of the following figures CORRECTLY represents the chemiosmotic hypothesis of ATP synthesis occuring in a mitochondrion in a cell? (Key2022Aerobic Respiration
  15. 15Let ' X ' be the perpendicular distance from the centromere of each chromosome to the equatorial plane of a human cell. Which of the followi2022M-phase (Mitotic Phase)

Chemistry

  1. 1The products of the reaction between aqueous solutions of and are2022Terminology of coordination compounds
  2. 2For the colourless complex , where M is a transition metal, the CORRECT ground state -electron configuration of M is2022Crystal Field Theory
  3. 3Choose the correct statement about the structure of fullerene.2022Preparation and Properties of Benzene
  4. 4The first to fifth ionization energies (IE) of two p-block elements and are given below. The number of valence electrons in and respectively2022Periodic properties
  5. 5Which of the following expressions represents the hydrogen atom wave function shown in the figure below? ( is the distance of the electron f2022Quantum mechanical model
  6. 6Which of the following molecules are aromatic?2022Conjugation and Aromaticity
  7. 7Which of the following are aryl bromides?2022Preparation and Properties of Aryl Halides
  8. 8Benzamide is treated with and to form the product X , which is then reacted with and at to form Y . Y is immediately treated with ethanol to2022Preparation and Properties of Amines
  9. 9In the following reaction sequence, the major products , and respectively are2022Reactions of Phenol
  10. 10The major product of the following reaction is2022Reactions of alkenes
  11. 11An aqueous solution contains 1.0 M of and 0.001 M of ions at and ions do not interact with each other. This solution is put in an electrolyt2022Cells and Electrode Potential, Nernst Equation
  12. 12For the reaction involving ideal gases, , which of the following plots is qualitatively correct? ( and are the equilibrium constants in term2022Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  13. 13The van der Waals equation for a real gas is given by . What is the dimension of ?2022Real Gases and Van der Waal's Equation
  14. 142 g of naphthoic acid (molecular weight ) dissolved in 20 mL of benzene shows a freezing point depression of 2 K. For benzene, the freezing 2022Colligative Properties and Abnormal Molecular Masses
  15. 15Identify the correct order of the molecules with respect to the magnitude of their dipole moment:2022Dipole moment

Mathematics

  1. 1A randomly chosen card from a deck of 52 cards is given to be a black card (i.e. Spade or Club). What is the probability that it is either a2022Conditional Probability and Multiplication Theorem
  2. 2Let be a complex root of the quadratic polynomial . The value of is2022Cube Root of Unity
  3. 3Let be a polynomial. Suppose that Then2022Maxima Minima
  4. 4Let be the set of all unit vectors in the -plane. Then the set has2022Algebra of Vectors
  5. 5A lab reports that the global average temperature in the year 2020 was and predicts that the global average temperature will increase at the2022Geometric Progression
  6. 6Let be the set of all matrices with real entries and be the relation Which of the following statements is true?2022Product of Matrices
  7. 7For a natural number , let be the curve in the -plane given by , where . Let denote the area of the region bounded between and . Then the la2022Area bounded by two curves
  8. 8Let be a continuous function on and be its antiderivative. If and , then is2022Properties of Definite Integration
  9. 9Let be a nonzero real number and be a continuous function such that for all . Consider . Then has2022Maxima Minima
  10. 10Let be the matrix For any natural number , the determinant of is2022Expansion of Determinants
  11. 11Consider the vectors The values of for which there is at least one nonzero vector perpendicular to the vectors and are2022Scalar Triple Product
  12. 12Consider the tangent lines to the circle at points and . If is the point of intersection of these two tangent lines, then is:2022Tangent to circle
  13. 13The function given by is2022Monotonicity
  14. 14The value of the integral where is the greatest integer less than or equal to for any real number , is2022Properties of Definite Integration
  15. 15For arbitrary constants , the differential equation representing the family of curves is2022Formation of Differential Equation

Physics

  1. 1A particle experiences an acceleration , where is the velocity of the particle and is a constant. If the distances traveled by the particle 2022Non-uniform Motion
  2. 2A point mass attached to a massless string is undergoing circular motion in a vertical plane. The length of the string is and the accelerati2022Circular motion
  3. 3An object is released from rest from the inner edge of a hemispherical bowl, and it falls under gravity. The coefficient of kinetic friction2022Frictional force
  4. 4As shown in the figure a block is resting on a frictionless floor and is attached to the free end of a spring. The right edge of the block i2022Time Period and Frequency
  5. 5A liquid of density in a container weighs . A cubic block of side and density is pushed by a stick to completely submerge the block in the l2022Archmidies Principle
  6. 6A monoatomic ideal gas at pressure and volume is first adiabatically compressed to volume and then is allowed to expand isothermally back to2022Thermodynamic Processes
  7. 7A uniform taut string with two point charges and attached to its ends passes over two massless pullies kept distance apart as shown in the f2022Vibration of String
  8. 8Two uniformly charged concentric thin spherical shells of radii and have charges and , respectively. How does the electrostatic potential va2022Electric Potential and Potential Energy
  9. 9Consider a very long cylinder of radius having a uniform positive charge density . A sphere of radius has been carved out (see figure), leav2022Electric Field and Electric Field Lines
  10. 10In the given circuit, the box B either contains a capacitor, or an inductor or a resistor. The current versus time plots for three cases are2022AC Circuits
  11. 11In the given circuit each of the resistors is of resistance and each of the capacitors has capacitance. What is the charge in the capacitor 2022Kirchoffs Laws
  12. 12A thin lens made of material of refractive index forms the image at the position of a point object held at on the central axis of the lens, 2022Lens Formula, Refraction of light from curved surface
  13. 13A conducting sphere of radius initially contains a uniform volume charge density . What is the electric flux through a spherical surface of 2022Electric Flux and Gauss Law
  14. 14The figures in the options show the photocurrent of a photoelectric material versus the frequency of an incident light beam. The light beam 2022Photoelectric Effect
  15. 15Consider that in a fission of a single Plutonium atom 207 MeV energy is released. Assuming all atoms of Plutonium undergo fission, which of 2022Nuclear energy

Frequently Asked Questions

1.How many questions are in the IAT (IISER) 2022 paper?

This paper has 60 questions in total - 15 each from Biology, Chemistry, Mathematics, and 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 IAT (IISER) 2022 paper structured?

The IAT (IISER) 2022 paper on MARKS has 60 questions, organised by subject:

  • Biology: 15 questions - 15 single-correct.
  • Chemistry: 15 questions - 15 single-correct.
  • Mathematics: 15 questions - 15 single-correct.
  • Physics: 15 questions - 15 single-correct.
4.How difficult is the IAT (IISER) 2022 paper?

Each question on MARKS carries a difficulty rating. Of the 60 rated questions in this paper, 10 (17%) are easy, 46 (77%) are medium and 4 (7%) are hard. Subject wise:

  • Biology: 4 easy, 11 medium, 0 hard
  • Chemistry: 2 easy, 12 medium, 1 hard
  • Mathematics: 3 easy, 12 medium, 0 hard
  • Physics: 1 easy, 11 medium, 3 hard
5.Which chapters were asked the most in the IAT (IISER) 2022 paper?

The chapters with the most questions in each subject were:

  • Biology: Principles of Inheritance and Variation (4) and Respiration in Plants (2).
  • Chemistry: Coordination Compounds (2) and Hydrocarbons (2).
  • Mathematics: Application of Derivatives (3), Definite Integration (2), and Vector Algebra (2).
  • Physics: Electrostatics (3).
6.Where can I find the solutions for the IAT (IISER) 2022 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 IAT (IISER) 2022 paper to check my preparation?

Set a timer, attempt the 60 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 IAT (IISER). Repeating this with other papers shows whether the same weak spots keep coming back.

8.Will the IAT (IISER) 2022 paper help me prepare for IAT (IISER) 2027?

Yes. Every past paper shows the question styles and topics IAT (IISER) 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.