Jump to a section

BITSAT 2021

Browse the complete Chemistry, Mathematics, and Physics question set from the BITSAT 2021 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 125 questions in total - 49 easy (39%), 69 moderate (55%) and 7 tough (6%). That's a fairly typical mix for this exam. By subject: Physics 35% easy, 57% moderate, 8% tough; Chemistry 40% easy, 55% moderate, 5% tough; Mathematics 42% easy, 53% moderate, 4% tough.

Chemistry questions were spread across 24 chapters, with Chemical Bonding and Molecular Structure (7), Chemistry in Everyday Life (4), and Structure of Atom (3) carrying the most weight. Mathematics questions were spread across 23 chapters, with Application of Derivatives (4), Indefinite Integration (4), and Sequences and Series (4) carrying the most weight. Physics questions were spread across 26 chapters, with Dual Nature of Matter (3), Alternating Current (2), and Current Electricity (2) carrying the most weight.

Chemistry

  1. 1Which one of the following ions has the maximum magnetic moment?2021Covalent and Co-ordinate Bonding
  2. 2Which of the following represents the correct order of bond lengths in2021Covalent and Co-ordinate Bonding
  3. 3Which one of the following coordination compounds is used to inhibit the growth of tumours?2021Terminology of coordination compounds
  4. 4Aspirin is known as :2021Drugs and It's Classification
  5. 5In a 1 st order reaction, reactant concentration varies with time as :2021Rate law and rate constant
  6. 6Which of the following has the highest bonding tendency?2021Covalent and Co-ordinate Bonding
  7. 7Identify the incorrect statement:2021Sulphur and Its Compounds
  8. 8Which of the following does not contain any coordinate bond?2021Covalent and Co-ordinate Bonding
  9. 9Which of the following set contains species having same angle around the central atom?2021Hybridisation and VSEPR Theory
  10. 10Liquids A and B form an ideal solution in the entire composition range. At , the vapor pressures of pure A and pure B are and , respectively2021Vapour pressure and raoult's law
  11. 11Hydrolysis of gives and . Which of the following is ?2021Nitrogen and Its Compounds
  12. 12Element 'B' forms ccp structure and 'A' 'occupies half of the octahedral voids, while oxygen atoms occupy all the tetrahedral voids. The str2021Crystal Structure of Solids
  13. 13en complex . The correct statement about the complex (X) is -2021Isomerism of coordination compounds
  14. 14The frequency of radiation emitted when the electron falls from to in a hydrogen atom will be (Given : ionization energy of atom and )2021Hydrogen spectrum
  15. 15Cetyltrimethyl ammonium bromide is a popular2021Cleansing Agents
  16. 16Which of the following chemicals can be added for sweetening of food items at cooking temperature and does not provides calories?2021Artificial Sweetning Agents and Food Preservatives
  17. 17In the number of lone pairs on are respectively2021Hybridisation and VSEPR Theory
  18. 18Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?2021Van Der Waals Forces, Hydrogen Bonding and Metallic Bonding
  19. 19Arsenic containing medicine used for the treatment of syphilis, is2021Drugs and It's Classification
  20. 20The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is two. The metal ion i2021Electronic configuration
  21. 21Adsorption of a gas follows Freundlich adsorption isotherm. is the mass of the gas adsorbed on mass of the adsorbent. The plot of versus is 2021Adsorption isotherms
  22. 22The correct stability order of following species is -2021Conjugation and Aromaticity
  23. 23Nitrogen is obtained by the thermal decomposition of:2021Nitrogen and Its Compounds
  24. 24Calculate the wavelength (in nanometer) associated with a proton moving at . (Mass of proton and2021Dual Behaviour of Matter and Heisenberg Uncertainty Principle
  25. 25The solubility of silver bromide in hypo solution involves the formation of:2021Solubility
  26. 26Fructose reduces Tollen's reagent due to:2021Tests for aldehyde and ketones
  27. 27When and pass through a test tube which has ammonical , find out which gas comes out unaffected from test tube?2021Preliminary Tests
  28. 28Which of the following acts as an antioxidant in edible oils?2021Vitamins
  29. 29Methylaniline, A is?2021Preparation and Properties of Isocyanides
  30. 30In the reaction: Which of the following compounds will be formed?2021Preparation and Properties of Alcohols
  31. 31The major product ' in the following reaction is :2021Preparation and Properties of Monohalides
  32. 32Biochemical oxygen demand(BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is 2021Water Pollution
  33. 33Which of the following has minimum melting point?2021General Characteristics of Alkali Metals
  34. 34of gas effuses through a hole in a container in 5 seconds. The time taken for the effusion of the same volume of the gas specified below und2021Rate of reaction
  35. 35Work out the heat change (cal) when of He gas at undergoes isothermal and reversible compression from initial pressure of to .2021First Law and Basic Fundamentals of Thermodynamics
  36. 36is dissociating at at a total pressure of atm. If equilibrium constant is , then which of the following relation is numerically correct -2021Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  37. 37For the reaction: in basic medium, the coefficients of and for the balanced equation are respectively2021Balancing of redox reactions
  38. 38Two elements and have similar chemical properties. They don't form solid hydrogencarbonates, but react with nitrogen to form nitrides. A and2021General Characteristics of Alkali Metals
  39. 39Diborane reacts independently with and to produce, respectively:2021Boron and Its Compounds
  40. 40At , the molar conductance at infinite dilution for the strong electrolytes and are and respectively. in is2021Conductance and Conductivity

Mathematics

  1. 1If the sum of a certain number of terms of the A.P. is 116 then the last term is2021Arithmetic Progression
  2. 2The distance between the parallel lines and is . Value of is2021Point and Line
  3. 3Value of is2021Algebraic and Rational Limits
  4. 4If , then value of is2021Integration by Substitution
  5. 5The domain of the function is given by2021Domain
  6. 6The eccentricity of the ellipse whose major axis is three times the minor axis is:2021Equation of Ellipse
  7. 7The sum of all odd numbers between 1 and 1000 which are divisible by 3 is2021Arithmetic Progression
  8. 8How many numbers lying between 999 and 10000 can be formed with the help of the digits , when the digits are not repeated?2021Permutation
  9. 9The points and form2021Coordinate System
  10. 10Find the value of such that the sum of the squares of the roots of the equation is least.2021Relation between Roots and Coefficients
  11. 11The value of is :2021Integration by Substitution
  12. 12The length of the perpendicular drawn from the point to the line is :2021Line in Space
  13. 13If the slope of the tangent to the curve at any point is , then the equation of a curve passing through is2021Homogeneous DE
  14. 14If , then value of is2021Basic
  15. 15The coefficient of the term independent of in the expansion of is2021Terms of Binomial Expansion
  16. 16Preview not available - open to view this question.2021Differentiation of implicit functions
  17. 17If and , then is equal to :2021Parametric differentiation
  18. 18The points at which the tangent passes through the origin for the curve are2021Tangent Normal
  19. 19If the radius of a sphere is measured as with an error of , then find the approximating error in calculating its volume.2021Rate Measure Error and Approximation
  20. 20If is a complex number such that , then2021Algebra of complex numbers
  21. 21then2021Properties of Definite Integration
  22. 22The area bounded by the curves and is2021Area bounded by two curves
  23. 23is equal to2021Derivative of f(x) wrt g(x)
  24. 24is2021Monotonicity
  25. 25Evaluate:2021Properties of Definite Integration
  26. 26The equation of the circle, which touches the line and passes through and is2021Equation of Circle & its intercept
  27. 27Coefficient of in the expansion of is2021Terms of Binomial Expansion
  28. 28The general solution of the differential equation is2021Linear Differential Equation
  29. 29The area bounded by curves and is2021Area bounded by two curves
  30. 30Consider an infinite geometric series with first term and common ratio . If its sum is 4 and the second term is , then:2021Geometric Progression
  31. 31equals2021Integration by Substitution
  32. 32If then2021T-Ratios of Multiple & sub multiple angles
  33. 33is equal to2021Algebraic and Rational Limits
  34. 34If the harmonic mean between and be , then the value of is2021Arithmetic Progression
  35. 35Girl students constitute of I year and of II year at Roorkee University. During summer holidays of the I year and of II year students are gi2021Baye's Theorem
  36. 36If the tangent at on meets the curve again at , then is2021Tangent Normal
  37. 37A line makes angles of and with the positive axes of and respectively. The angle made by the same line with the positive axis of , is2021Direction Cosines and Direction Ratios
  38. 38An ellipse has as semi minor axis, and its focii and the angle FBF' is a right angle. Then the eccentricity of the ellipse is2021Equation of Ellipse
  39. 39The value of at is2021Multiple Angles
  40. 40If is a vector of magnitude 50 , collinear with the vector and makes an acute angle with the positive direction of - axis, then is equal to2021Algebra of Vectors
  41. 41The mean and variance of a random variable having binomial distribution are 4 and 2 respectively, then is2021Random Variable and its Probability Distribution
  42. 42The statement For any real numbers if , then when .2021Mathematical Reasoning
  43. 43then is equal to . Value of is2021Conjugate, modulus and argument
  44. 44is equal to2021Algebraic and Rational Limits
  45. 45If then the value of is2021Integration using Partial Fraction

Physics

  1. 1The electric potential is given as a function of distance metre by volt. Question: Value of electric field at is2021Electric Potential and Potential Energy
  2. 2A proton moving with a velocity enters a magnetic field of tesla at an angle of with the field. The radius of curvature of its path will be 2021Motion of Charged Particle in Magnetic Field
  3. 3If force , length and time are assumed to be fundamental units, then the dimensional formula of the mass will be2021Dimensions
  4. 4A metal disc of radius is rotated at a constant angular speed of in a plane at right angles to an external field of magnetic induction . The2021Motional and Rotational EMF
  5. 5A balloon is rising vertically up with a velocity of . A stone is dropped from it and it reaches the ground in 10 seconds. The height of the2021Motion Under Gravity
  6. 6An alternating voltage is applied across a circuit. As a result, a current flows in it. The power consumed per cycle is2021Alternating Current, Voltage and Power
  7. 7A gun fires two bullets at and with horizontal. The bullets strike at some horizontal distance. The ratio of maximum height for the two bull2021Projectile motion
  8. 8Green light of wavelength is incident on an airglass interface. If the refractive index of glass is , the wavelength of light in glass would2021Critical angle and total internal reflection
  9. 9Four massless springs whose force constants are and respectively are attached to a mass kept on a frictionless plane (as shown in figure). I2021Time Period and Frequency
  10. 10Suppose the law of gravitational attraction suddenly changes and becomes an inverse cube law i.e. F , but still remaining a central force. T2021Kepler laws
  11. 11Three specimens A, B, C of same radioactive element has activities 1 microcurie, 1 rutherford and 1 becquerel respectively. Which specimen h2021Radioactivity
  12. 12A solenoid is long and in diameter. It has 5 layers of winding of 1000 turns each and carries a current of . What is the magnetic field at i2021Magnetic Field
  13. 13A body of weight is suspended as shown in the figure. The tension in the horizontal string (in wt ) is2021Equilibrium of Forces
  14. 14A wire of a certain material is stretched slowly by ten per cent. Its new resistance and specific resistance become respectively:2021Resistance and Resistivity
  15. 15The significant result deduced from the Rutherford's scattering experiment is that2021Atomic Structure
  16. 16A ball of mass is thrown vertically upwards by applying a force by hand. If the hand moves while applying the force and the ball goes upto h2021Newton's laws of motion
  17. 17A zener diode of voltage is used to maintain a constant voltage across a load resistance by using a series resistance . If the e.m.f. of sou2021Diodes
  18. 18In a given network the equivalent capacitance between and is .2021Grouping of capacitors
  19. 19In a simple pendulum of length I the bob is pulled aside from its equilibrium position through an angle and then released. The bob passes th2021Angular oscillations
  20. 20A moving coil galvanometer has resistance of and full scale deflection of . It can be converted into voltmeter of full scale by connecting i2021Electric Instruments
  21. 21The frequency of whistle of an engine appears to be of initial frequency when it crosses a stationary observer. If the velocity of sound is 2021Doppler's Effect
  22. 22Three bricks each of length and mass are arranged as shown from the wall. The distance of the centre of mass of the system from the wall is2021Centre of mass of continuous mass distribution
  23. 23The I - V characteristics shown in figure represents2021Semiconductors
  24. 24The angle of dip at a place is and the vertical component of the earth's magnetic field is . The earth's magnetic field at this place is2021Earths magnetic field
  25. 25A round disc of moment of inertia about its axis perpendicular to its plane and passing through its centre is placed over another disc of mo2021Rotational kinematics
  26. 26For an RLC circuit driven with voltage of amplitude and frequency the current exhibits resonance the quality factor, is given by2021Quality and Power Factor
  27. 27The two ends of a rod of length and a uniform crosssectional area are kept at two temperatures and . The rate of heat transfer, through the 2021Calorimetry
  28. 28A U - shaped tube contains a liquid of density rho and it is rotated about the left dotted line as shown in the figure. Find the difference 2021Hydrodynamics
  29. 29Monochromatic light of wavelength is produced by a helium neon laser. The power emitted is . The number of photons arriving per sec on the a2021Photoelectric Effect
  30. 30The displacement y of a particle in a medium can be expressed as, where is in second and in meter. The speed of the wave is2021Speed of Sound Waves
  31. 31An ideal gas at atmospheric pressure is adiabatically compressed so that its density becomes 32 times of its initial value. If the final pre2021Thermodynamic Processes
  32. 32A charge is placed at each of the opposite corners of a square. A charge is placed at each of the other two corners. If the net electrical f2021Electric Potential and Potential Energy
  33. 33Three particles, each of mass gram, are situated at the vertices of an equilateral triangle of side (as shown in the figure). The moment of 2021Moment of inertia of rigid bodies
  34. 34Electrons are accelerated through a potential difference and protons are accelerated through a potential difference . The de - Broglie wavel2021Matter Waves
  35. 35The temperature of an ideal gas is increased from to . If at , the root mean square velocity of the gas molecules is , at it becomes2021Speed of Gas
  36. 36A point particle is held on the axis of a ring of mass and radius at a distance from its centre C. When released, it reaches under the gravi2021Gravitational field
  37. 37A plane electromagnetic wave is incident on a plane surface of area A, normally and is perfectly reflected. If energy E strikes the surface 2021Photoelectric Effect
  38. 38The compressibility of water is per unit atmospheric pressure. The decrease in volume of of water under a pressure of 100 atmosphere will be2021Thermodynamic Systems
  39. 39Consider the optical system shown in Fig. The point source of light is having wavelength equal to . The light is reaching screen only after 2021Diffraction of Light
  40. 40A spherical drop of radius is divided into eight equal droplets. If surface tension is , then the work done in this process is2021Surface tension

Frequently Asked Questions

1.How many questions are in the BITSAT 2021 paper?

This paper has 125 questions in total - 40 from Chemistry, 45 from Mathematics, and 40 from Physics.

2.Can I practise questions from just one subject?

Yes. Use the 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 BITSAT 2021 paper?

The BITSAT 2021 paper on MARKS has 125 questions, organised by subject:

  • Chemistry: 40 questions - 40 single-correct.
  • Mathematics: 45 questions - 45 single-correct.
  • Physics: 40 questions - 40 single-correct.
4.What is the difficulty level of the BITSAT 2021 paper?

Each question on MARKS carries a difficulty rating. Of the 125 rated questions in this paper, 49 (39%) are easy, 69 (55%) are medium and 7 (6%) are hard. Subject wise:

  • Chemistry: 16 easy, 22 medium, 2 hard
  • Mathematics: 19 easy, 24 medium, 2 hard
  • Physics: 14 easy, 23 medium, 3 hard
5.Which chapters had the most questions in the BITSAT 2021 paper?

The chapters with the most questions in each subject were:

  • Chemistry: Chemical Bonding and Molecular Structure (7), Chemistry in Everyday Life (4), and p Block Elements (Group 15, 16, 17 & 18) (3).
  • Mathematics: Application of Derivatives (4), Indefinite Integration (4), and Sequences and Series (4).
  • Physics: Dual Nature of Matter (3), Alternating Current (2), and Current Electricity (2).
6.Where can I find the solutions for the BITSAT 2021 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 BITSAT 2021 paper to check my preparation?

Set a timer, attempt the 125 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 BITSAT. Repeating this with other papers shows whether the same weak spots keep coming back.

8.Will the BITSAT 2021 paper help me prepare for BITSAT 2027?

Yes. Every past paper shows the question styles and topics BITSAT 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.