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AP EAMCET 2021 24th August Evening Shift

Browse the complete Chemistry, Mathematics, and Physics question set from the AP EAMCET 2021 24th August Evening Shift 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 shift as a PDF.

This paper has 160 questions in total - 87 easy (54%), 58 moderate (36%) and 15 tough (9%). That's an easier-than-usual mix for this exam - aim to clear it quickly and save time for the harder papers. By subject: Chemistry 68% easy, 30% moderate, 3% tough; Mathematics 54% easy, 35% moderate, 11% tough; Physics 43% easy, 45% moderate, 13% tough.

Chemistry questions were spread across 22 chapters, with Chemical Bonding and Molecular Structure (6), Classification of Elements and Periodicity in Properties (3), and Structure of Atom (3) carrying the most weight. Mathematics questions were spread across 29 chapters, with Straight Lines (10), Vector Algebra (7), and Application of Derivatives (5) carrying the most weight. Physics questions were spread across 25 chapters, with Center of Mass Momentum and Collision (5), Electrostatics (3), and Thermodynamics (3) carrying the most weight.

Chemistry

  1. 1In the electronic configuration of which of the given elements, Aufbau principle or rule is violated?24 Aug, 2021 (E)Electronic configuration
  2. 2To which orbital among the following may an electron having zero angular momentum belong?24 Aug, 2021 (E)Quantum mechanical model
  3. 3The electron in any hydrogen atom jump on absorbing of energy would jump to.......orbit.24 Aug, 2021 (E)Hydrogen spectrum
  4. 4Effective nuclear charge is maximum in case of24 Aug, 2021 (E)Periodic properties
  5. 5Identify the incorrect order corresponding the mentioned property.24 Aug, 2021 (E)Periodic properties
  6. 6(A) Helium and beryllium have similar outer electronic configuration . (R) Both are chemically inert24 Aug, 2021 (E)Periodic properties
  7. 7Which among the following represents zero overlap?24 Aug, 2021 (E)Molecular Orbital Theory
  8. 8According to "molecular orbital theory", which among the following diatomic molecules only has -bonds?24 Aug, 2021 (E)Molecular Orbital Theory
  9. 9If two molecules of and having mass and and rate of diffusion of is , then rate of diffusion of will be24 Aug, 2021 (E)Mixture of gases
  10. 10A cylinder contains a mixture of of and of Ar gases. If the total pressure of the mixture of the gases in the cylinder is 30 bar, then the p24 Aug, 2021 (E)Mixture of gases
  11. 11The equivalent weight of in is Atomic mass of )24 Aug, 2021 (E)Equivalence concept
  12. 12Calculate the amount of hydrogen gas required in order to produce of ammonia by the reaction of and gases.24 Aug, 2021 (E)Quantitative measures in chemical equations
  13. 13The heat liberated when of benzoic acid is burnt in a bomb calorimeter at increases the temperature of of water by . If the specific heat of24 Aug, 2021 (E)Laws of Thermochemistry and Enthalpy Change
  14. 14For strong acid and strong base neutralisation net chemical change is If enthalpy of neutralisation of by is , then enthalpy of ionisation o24 Aug, 2021 (E)Laws of Thermochemistry and Enthalpy Change
  15. 15Which of the following statement is true when equilibrium is established in the reaction?24 Aug, 2021 (E)Law of Mass Action, Equilibrium Constant (Kc and Kp) and its Application
  16. 16The reaction, is exothermic and reversible. A mixture of and is at equilibrium in a closed container. When a certain quantity of extra is in24 Aug, 2021 (E)Le chatelier's principle
  17. 17The volume strength (in ) of is approximately24 Aug, 2021 (E)Concentration terms
  18. 18Bleaching powder can be obtained by which of the following reactions?24 Aug, 2021 (E)Compounds of Alkaline Earth Metals
  19. 19Aluminium (III) chloride forms a dimer because aluminium24 Aug, 2021 (E)Back Bonding
  20. 20Which of the following species do not exist?24 Aug, 2021 (E)Hybridisation and VSEPR Theory
  21. 21Which of the following practices will not come under green chemistry?24 Aug, 2021 (E)Control of environmental pollution
  22. 22Which among the following possesses a carbon in its structure?24 Aug, 2021 (E)Hybridisation and VSEPR Theory
  23. 23In thin layer chromatography, a substance moved by a distance of , where as the solvent moved by a distance of . Then the value of retardati24 Aug, 2021 (E)Purification of Organic Compounds
  24. 24Identify the products and formed from the following reactions.24 Aug, 2021 (E)Reactions of aromatic compounds
  25. 25Match the following and choose the correct code. Codes24 Aug, 2021 (E)Preparation and Properties of Monohalides
  26. 26If each edge of a cubic unit cell of an element having atomic mass 120 and density measures , then the crystal lattice is24 Aug, 2021 (E)Cubic system
  27. 27Which among the following is a colligative property?24 Aug, 2021 (E)Colligative Properties and Abnormal Molecular Masses
  28. 28of a non-electrolyte solute (molar mass is ) was dissolved in of xylene. If the freezing point depression constant of xylene is . Then, the 24 Aug, 2021 (E)Colligative Properties and Abnormal Molecular Masses
  29. 29A catalyst is a substance which24 Aug, 2021 (E)Catalysis and Theories of Catalysis
  30. 30Compounds and react according to the equation . The initial rate of formation was determined at different initial concentrations of and . Th24 Aug, 2021 (E)Rate law and rate constant
  31. 31If the rate constant for a first order reaction is , then find the time required for completion of of the reaction.24 Aug, 2021 (E)Integrated rate laws
  32. 32Colloids can be purified by24 Aug, 2021 (E)Preparation and Purification of colloids
  33. 33Shape of molecule is24 Aug, 2021 (E)Hybridisation and VSEPR Theory
  34. 34Which reaction(s) among the following produce dinitrogen?24 Aug, 2021 (E)Nitrogen and Its Compounds
  35. 35is a stronger acid than due to which of the following reasons?24 Aug, 2021 (E)Halogens and Its Compounds
  36. 36The geometries of and respectively are24 Aug, 2021 (E)Werner's theory and Valence Bond Theory
  37. 37Vitamin-A is called24 Aug, 2021 (E)Vitamins
  38. 38The following reaction is a/an24 Aug, 2021 (E)Properties and Preparation of Alkenes
  39. 39The major product of the following reaction sequence is24 Aug, 2021 (E)Reactions of Phenol
  40. 40Which compounds among the following give positive iodoform test?24 Aug, 2021 (E)Tests for aldehyde and ketones

Mathematics

  1. 1and are two functions such that and , then is equal to24 Aug, 2021 (E)Composite Function
  2. 2The domain of the function is24 Aug, 2021 (E)Domain
  3. 3[.] represents greatest integer function. Let and is24 Aug, 2021 (E)Composite Function
  4. 4If , then is equal to24 Aug, 2021 (E)Defintion of Function
  5. 5Which of the following matrices is not a square-matrix?24 Aug, 2021 (E)Formation and Basic of Matrix
  6. 6If is a non-singular matrix such that and , then24 Aug, 2021 (E)Types of Matrices
  7. 7Let and be a matrix. Then, equation det represents24 Aug, 2021 (E)Expansion of Determinants
  8. 8Let be a matrix with real entries. Let be the identity matrix. denotes the sum of diagonal entries of . Assume that Statement I If and , the24 Aug, 2021 (E)Trace of a Matrix
  9. 9The sum of two lower triangular matrices is always24 Aug, 2021 (E)Formation and Basic of Matrix
  10. 10is equal to24 Aug, 2021 (E)Power of iota
  11. 11What is the product of all the values of is equal to24 Aug, 2021 (E)nth roots of unity
  12. 12For the equation24 Aug, 2021 (E)Relation between Roots and Coefficients
  13. 13If and are the roots of the equation , then satisfies the equation24 Aug, 2021 (E)Relation between Roots and Coefficients
  14. 14If and , then the value of is24 Aug, 2021 (E)Ratio and Proportion
  15. 15Which of the following condition imply that roots of the equation are integers?24 Aug, 2021 (E)Relation between Roots and Coefficients
  16. 16The value of is equal to24 Aug, 2021 (E)Properties of Binomial Coefficients
  17. 17The number of integers from 1 to 1000 which are divisible by 2 or 3 is24 Aug, 2021 (E)Divisibility Test
  18. 18There are 10 points on the line excluding and and 8 points on excluding and . Number of triangles formed with these points not considering a24 Aug, 2021 (E)Geometric Permutation
  19. 19If and and , then is equal to24 Aug, 2021 (E)Integration using Partial Fraction
  20. 20is equal to24 Aug, 2021 (E)T-Ratios of Multiple & sub multiple angles
  21. 21If , then the value of is equal to24 Aug, 2021 (E)Basic Identities & T Ratios
  22. 22Preview not available - open to view this question.24 Aug, 2021 (E)Solving Trigonometric Equation
  23. 23If , then is equal to24 Aug, 2021 (E)Converting one Inverse T function to other Inverse T
  24. 24If the angles and of are in arithmetic progression, then24 Aug, 2021 (E)Arithmetic Progression
  25. 25In a equals to24 Aug, 2021 (E)Sine Rule and its application
  26. 26What is the greatest angle of the triangle whose sides are ?24 Aug, 2021 (E)Cosine Rule and Projection Formula
  27. 27is a regular hexagon. The sum of the vectors24 Aug, 2021 (E)Algebra of Vectors
  28. 28If is a regular hexagon with and , then equals to24 Aug, 2021 (E)Algebra of Vectors
  29. 29divides the line joining two points and whose position vectors are and respectively in the ratio externally. divides internally in the ratio24 Aug, 2021 (E)Basics of point in 3 dimension
  30. 30If is a vector of magnitude is a vector of magnitude 8 , then the maximum value of is24 Aug, 2021 (E)Product of 2 vectors
  31. 31The number of vectors of unit length perpendicular to the two vectors and is24 Aug, 2021 (E)Product of 2 vectors
  32. 32If the vectors and are mutually orthogonal, then is equal to24 Aug, 2021 (E)Product of 2 vectors
  33. 33Let and be the three vectors. If , and and the angle between and is and , then is equal to24 Aug, 2021 (E)Vector Triple Product
  34. 34If and and , then is equal to24 Aug, 2021 (E)Product of 2 vectors
  35. 35The arithmetic means of the following discrete data is given by24 Aug, 2021 (E)Mean
  36. 36A box contains coins, of which are fair and the rest are biased. When a biased coin is tossed, the probability of getting a head is twice as24 Aug, 2021 (E)Baye's Theorem
  37. 37If and be independent events with and , then the value of is24 Aug, 2021 (E)Independent Events
  38. 38A man is known to speak truth 7 out of 10 times. After throwing a die with 100 faces marked 1,2,3,.., 100 on it's faces, the man reports tha24 Aug, 2021 (E)Baye's Theorem
  39. 39Let be a random variable with probability distribution function, Then, value of is24 Aug, 2021 (E)Random Variable and its Probability Distribution
  40. 40For a binomial distribution mean , standard deviation , then is equal to24 Aug, 2021 (E)Bernoulli Trial and Binomial Distribution
  41. 41A straight rod of length 4 units slides such that its ends and always lie on the and -axes respectively. Then, the locus of the centroid of 24 Aug, 2021 (E)Coordinate System
  42. 42Find the transformed equation of the curve , when the axes are rotated through an angle .24 Aug, 2021 (E)Coordinate System
  43. 43If the line intersects the coordinate axes at and , then the value of is equal to24 Aug, 2021 (E)Basic Forms of Straight Line
  44. 44If a pair of lines drawn through the origin forms an isosceles right-angled triangle with the line , then those lines are24 Aug, 2021 (E)Angle between Lines
  45. 45The number of lines that can be drawn through the point at a distance of 10 units from the point is24 Aug, 2021 (E)Coordinate System
  46. 46If a point on the line is equidistant from the coordinate axes, then lies24 Aug, 2021 (E)Basic Forms of Straight Line
  47. 47Find the length of the intercept cut by the pair of lines over the -axis24 Aug, 2021 (E)general equation of second degree
  48. 48If the lines and are concurrent, then equals24 Aug, 2021 (E)Concurrency & Family of Lines
  49. 49If the equation , represents a pair of straight lines, then their point of intersection is24 Aug, 2021 (E)point of intersection of pair of straight lines
  50. 50If one of the lines given by the equation coincide with one of those given by the equation , while the other two lines are perpendicular to 24 Aug, 2021 (E)Concurrency & Family of Lines
  51. 51The circumcentre of the triangle formed by the points and is24 Aug, 2021 (E)Coordinate System
  52. 52The equation of a circle with center at and circumference of units is24 Aug, 2021 (E)Equation of Circle & its intercept
  53. 53If a circle of a constant radius 6 passes through origin and meets the coordinate axes at and , then find the locus of the centroid of .24 Aug, 2021 (E)Locus
  54. 54If the point lies inside the circle , then24 Aug, 2021 (E)Position of point
  55. 55The perpendicular distance from the point to common chord of the circles and is........ units.24 Aug, 2021 (E)Common Chord
  56. 56If and are three circles, then the length of tangent from their radical center to is ......... units.24 Aug, 2021 (E)Radical axis and centre
  57. 57If is the vertex and -axis is the directrix of a parabola, then its focus is24 Aug, 2021 (E)standard equation of parabola
  58. 58If the lines and are conjugate with respect to the ellipse , then equals24 Aug, 2021 (E)Line and ellipse
  59. 59The equation of hyperbola whose eccentricity is and distance between the foci is 10 units is24 Aug, 2021 (E)Equation of hyperbola
  60. 60If the orthocenter and circumcenter of a triangle respectively are and , then its centroid is24 Aug, 2021 (E)Coordinate System
  61. 61If the direction cosines of a straight line are , then is equal to24 Aug, 2021 (E)Direction Cosines and Direction Ratios
  62. 62A line in three dimensions makes angles and with the positive -axis and the positive -axis respectively. If makes an acute angle with the po24 Aug, 2021 (E)Direction Cosines and Direction Ratios
  63. 63A variable plane , which is at a unit distance from the origin cuts the coordinate axes at and . If the centroid of satisfies , then equals24 Aug, 2021 (E)Plane in Space
  64. 64If [.] denotes the greatest integer function, then is discontinuous at24 Aug, 2021 (E)Continuity
  65. 65If , then the values of and respectively are24 Aug, 2021 (E)Differentiation of Inverse Trigonometric Functions
  66. 66If , then is equal to24 Aug, 2021 (E)Logarithmic differentiation
  67. 67If , then is equal to24 Aug, 2021 (E)Differentiation of Inverse Trigonometric Functions
  68. 68The derivative of with respect to at equals24 Aug, 2021 (E)Derivative of f(x) wrt g(x)
  69. 69For the function , is a24 Aug, 2021 (E)Maxima Minima
  70. 70The value of of the Lagrange's mean value theorem for is24 Aug, 2021 (E)Mean Value Theorem
  71. 71For the curve , if increases at the rate of 2 units/sec, the rate of change in the slope of the curve at is ......../sec24 Aug, 2021 (E)Rate Measure Error and Approximation
  72. 72If the relation (subnormal length) (subtangent length) holds true for the curve , then the value of is equal to24 Aug, 2021 (E)Tangent Normal
  73. 73The point on the curve , at which the tangent is parallel to the -axis is24 Aug, 2021 (E)Tangent Normal
  74. 74is equal to24 Aug, 2021 (E)Integration by Parts
  75. 75is equal to24 Aug, 2021 (E)Integration by Parts
  76. 76If , then and are24 Aug, 2021 (E)Integration using Partial Fraction
  77. 77is equal to24 Aug, 2021 (E)Integration using Partial Fraction
  78. 78is equal to24 Aug, 2021 (E)Properties of Definite Integration
  79. 79If , then, . Here,[.] denotes greatest integer function.24 Aug, 2021 (E)Properties of Definite Integration
  80. 80The equation of a curve passing through the point , given that the slope of the tangent to the curve at any point is equal to the sum of the24 Aug, 2021 (E)Linear Differential Equation

Physics

  1. 1Generation, propagation and detection of electromagnetic waves is the basis of24 Aug, 2021 (E)Units
  2. 2Zero error belongs to the category of24 Aug, 2021 (E)Errors of Measurement
  3. 3The slope of velocity-time graph for motion with uniform velocity is equal to24 Aug, 2021 (E)Graphs of motion in one dimension
  4. 4If the equation of motion of a projectile is given by and its horizontal component of velocity is , then find its range.24 Aug, 2021 (E)Projectile motion
  5. 5A force-time graph for a linear motionis shown in following figure. The segments shown are circular. The linear momentum gained between 0 an24 Aug, 2021 (E)momentum
  6. 6A body of mass is acted upon by two forces each of magnitude , making an angle of with each other. The net acceleration of the body (in ) is24 Aug, 2021 (E)Newton's laws of motion
  7. 7A bullet of mass is fired from a rifle of mass . If be the velocity of the bullet, velocity acquired by the rifle is24 Aug, 2021 (E)momentum
  8. 8In perfectly inelastic collisions, the relative velocity of the bodies24 Aug, 2021 (E)Collisions
  9. 9A shell of mass moving with velocity suddenly breaks into two pieces. If one of those parts having mass remains stationary, find the velocit24 Aug, 2021 (E)momentum
  10. 10The distance between the carbon atom and the oxygen atom in a carbon monoxide molecule is . Given, mass of carbon atom is and mass of oxygen24 Aug, 2021 (E)Centre of mass of discrete particles
  11. 11A circular disc is to be made by using equal masses of aluminium and iron. To get maximum moment of inertia, about its geometrical axis, it 24 Aug, 2021 (E)Moment of inertia of rigid bodies
  12. 12The moment of inertia of a body about a certain axis is . Initially, the body is at rest. In order to produce rotational kinetic energy of ,24 Aug, 2021 (E)Rotational kinematics
  13. 13A simple pendulum, suspended from the ceiling of a lift, has a period of oscillation , when the lift is at rest. If the lift starts moving u24 Aug, 2021 (E)Applications of SHM
  14. 14A body of mass hangs from a spring and oscillates with a period . On the removal of the body, the spring is shortened by (take, )24 Aug, 2021 (E)Applications of SHM
  15. 15If is the radius of orbit of a satellite, then the kinetic energy of the satellite is24 Aug, 2021 (E)Motion of satellite
  16. 16If is the areal velocity of a planet of mass , its angular momentum is24 Aug, 2021 (E)Kepler laws
  17. 17Find the Young's modulus of the wire whose stress-strain curve is as shown in the following figure24 Aug, 2021 (E)Young’s Modulus and Breaking Stres
  18. 18A solid float such that its rd part is above water surface. Then, the density of solid is24 Aug, 2021 (E)Archmidies Principle
  19. 19A wooden block floating in a bucket of water has th of its volume submerged. When certain amount of an oil is poured into the bucket, it is 24 Aug, 2021 (E)Archmidies Principle
  20. 20When a meter rod made of silver at is heated to , its length increased by . Then, find the coefficient of volume expansion of the silver.24 Aug, 2021 (E)Thermal Expansion
  21. 21Newton's law of cooling holds good provided the temperature difference between body and surrounding is24 Aug, 2021 (E)Radiation
  22. 22When the ideal gas is compressed isothermally, then its pressure24 Aug, 2021 (E)Thermodynamic Processes
  23. 23Which of the following is the best container for a gas during adiabatic process?24 Aug, 2021 (E)Thermodynamic Processes
  24. 24Match of the following. Codes24 Aug, 2021 (E)First Law of Thermodynamics
  25. 25Two identical sinusoidal waves each of amplitude , with a phase difference of are travelling with the same direction in a string. The amplit24 Aug, 2021 (E)Basics of Mechanical Waves
  26. 26The focal length of a convex lens is . An object is placed at a distance from its first focal point. The ratio of the size of the real image24 Aug, 2021 (E)Lens Formula, Refraction of light from curved surface
  27. 27An electron is fired directly towards a large metal plate having surface charge density . The distance from where the electron be projected,24 Aug, 2021 (E)Electric Field and Electric Field Lines
  28. 28What is the direction of the lines of force at any point on the equipotential surface?24 Aug, 2021 (E)Electric Potential and Potential Energy
  29. 29A unit positive charge has to be brought from infinity to a midpoint between two charges and separated by a distance of . How much work will24 Aug, 2021 (E)Electric Potential and Potential Energy
  30. 30Current through the branch , in the given circuit is24 Aug, 2021 (E)Kirchoffs Laws
  31. 31A galvanometer may be converted into ammeter or a voltmeter. In which of the following cases the resistance of the devices, so obtained will24 Aug, 2021 (E)Electric Instruments
  32. 32A toroid of turns, mean radius and cross-sectional radius a carries current . It is placed on a horizontal table taken as -plane. Its magnet24 Aug, 2021 (E)Magnetic Moment
  33. 33When a piece of a magnetic substance is put in a uniform magnetic field, the flux density inside it is four times the flux density away from24 Aug, 2021 (E)Magnetism and Properties of Magnet
  34. 34A magnetic field given by is directed perpendicular to the plane of a circular coil containing 25 turns of radius and whose total resistance24 Aug, 2021 (E)Induced Electric Field
  35. 35A coil having 500 square loops each of side 10 is placed normal to a magnetic flux which increases at a rate of . The induced emf is24 Aug, 2021 (E)Magnetic Flux, Faraday's and Lenz law
  36. 36The current and emf through an inductance differ by phase by24 Aug, 2021 (E)Alternating Current, Voltage and Power
  37. 37A radio receiver antenna that is long is oriented along the direction of the electromagnetic wave and it receives a signal of intensity . Th24 Aug, 2021 (E)Modulation
  38. 38Photo cells convert24 Aug, 2021 (E)Photoelectric Effect
  39. 39Which of the following is the property of Rydberg constant?24 Aug, 2021 (E)Atomic Spectrum
  40. 40If current in diode is five times that in and breakdown voltage of diode is , find the value of ?24 Aug, 2021 (E)Diodes

Frequently Asked Questions

1.How many questions are in the AP EAMCET 2021 24th August Evening Shift paper?

This paper has 160 questions in total - 40 from Chemistry, 80 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 shift.

3.Is this the same paper for all students who appeared in the evening shift?

AP EAMCET uses different question sets across shifts and sessions to maintain exam integrity, so this page reflects the specific paper administered in the 24th August 2021 evening shift.

4.Where can I find the morning shift paper for the same date?

The AP EAMCET 2021 24th August Morning Shift paper is listed separately - you can switch to it from the "AP EAMCET Paper Wise PYQs" panel, under AP EAMCET 24th August 2021.

5.How is the AP EAMCET 2021 24th August Evening Shift paper structured?

The AP EAMCET 2021 24th August Evening Shift paper on MARKS has 160 questions, organised by subject:

  • Chemistry: 40 questions - 40 single-correct.
  • Mathematics: 80 questions - 80 single-correct.
  • Physics: 40 questions - 40 single-correct.
6.How difficult is the AP EAMCET 2021 24th August Evening Shift paper?

Each question on MARKS carries a difficulty rating. Of the 160 rated questions in this paper, 87 (54%) are easy, 58 (36%) are medium and 15 (9%) are hard. Subject wise:

  • Chemistry: 27 easy, 12 medium, 1 hard
  • Mathematics: 43 easy, 28 medium, 9 hard
  • Physics: 17 easy, 18 medium, 5 hard
7.Which chapters were asked the most in the AP EAMCET 2021 24th August Evening Shift paper?

The chapters with the most questions in each subject were:

  • Chemistry: Chemical Bonding and Molecular Structure (6), Classification of Elements and Periodicity in Properties (3), and Structure of Atom (3).
  • Mathematics: Straight Lines (10), Vector Algebra (7), and Application of Derivatives (5).
  • Physics: Center of Mass Momentum and Collision (5), Electrostatics (3), and Thermodynamics (3).
8.Where can I find the solutions for the AP EAMCET 2021 24th August Evening Shift 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 shift is coming soon.

9.How should I use the AP EAMCET 2021 24th August Evening Shift paper to check my preparation?

Set a timer, attempt the 160 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 AP EAMCET. Repeating this with other papers shows whether the same weak spots keep coming back.

10.Will the AP EAMCET 2021 24th August Evening Shift paper help me prepare for AP EAMCET 2027?

Yes. Every past paper shows the question styles and topics AP EAMCET 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.