2020 - Error Correction Universal Books

PHYSICS NEET

CHAPTER NAME | LOCATION | ERROR |

Chapter 2 : Motion Under Gravity Questions | Page 60, Q. 30 | Download Questions here: |

CHEMISTRY JEE

CHAPTER NAME | LOCATION | ERROR |

Structure of Atom | Page 107, Q. 28 | Option (d) is correct |

Classification of Elements and Periodicity in Properties | Page 159, Q. 28 | None of the options (F<Li<Na<K) |

Hydrogen | Page 585, Q. 13 | Mistake in option (c) |

States of Matter | Page 305, Q. 2 | Option (b) is correct |

Chemical Equilibrium | Page 407, Q. 5 | Option (c) is correct |

Purification, Classification and Nomenclature of Organic Compounds | Page 737, Q. 151 | Question is wrong |

Hydrogen | Page 599, Q. 40 | Option (a) is correct |

Redox Reactions | Page 563, Q. 66 | Option (a) & (b) are correct |

Hydrocarbons | Page 987, Q. 103 | Option (b) & (e) are correct |

Surface Chemistry | Page 1421, Q. 54 | Option (a) is correct |

General Organic Chemistry | Page 867, Q. 18 | Option (c) is correct |

General Organic Chemistry | Page 851, Q. 17 | Option (e) is correct |

Haloalkanes and Haloarenes | Page 1798, Q. 2 | All options are wrong |

Ionic Equilibrium | Page 497, Q. 68 | Option (a) & (c) are correct |

Biomolecules | Page 2190, Q. 137 | Misprinting in Question |

Classification of Elements and Periodicity in Properties | Page 142, Q.39 | Misprinting in option (c) |

Classification of Elements and Periodicity in Properties | Page 168, Q. 16 | Option (b) is correct |

Electrochemistry | Page 1216, Q. 54 | Correct answer is 5 |

General Organic Chemistry | Page 833, Q. 21 | Solution is wrong |

Purification, Classification and Nomenclature of Organic Compounds | Page 747, Q. 33 | Option (a) is correct |

Purification, Classification and Nomenclature of Organic Compounds | Page 750, Q. 100 | Option (a) is correct |

Hydrocarbons | Page 980, Q. 116 | Mistake in Solution |

Hydrocarbons | Page 952, Q. 66 | Option (c) is correct |

Hydrocarbons | Page 990, Q. 25 | Option (a) is correct |

Hydrocarbons | Page 1008 | Question numbering is wrong from 15 to 22 |

Solutions | Page 1105, Q. 1 | Mistake in Question |

Electrochemistry | Page 1221, Q. 45 | Option (c) is correct |

Chemical Kinetics | Page 1301, Q. 139 | Option (c) & (d) are correct |

Chemical Kinetics | Page 1302, Q. 164 | Option (b) is correct |

Polymers | Page 2253, Q. 27 | Option (a) is correct |

The p-Block Elements (Nitrogen, Oxygen, Halogen and Noble Family) | Page 1541, Q. 34 | Option (a) is correct |

Alcohols, Phenols and Ethers | Page 1893, Q. 22 | None of the options |

Alcohols, Phenols and Ethers | Page 1856, Q. 38 | Mistake in question |

Purification, Classification and Nomenclature of Organic Compounds | Page 732, Q. 91 | Option (d) is correct |

Thermodynamics and Thermochemistry | Page 385, Q. 16 | Option (d) is correct |

Solutions | Page 1140, Q. 4 | Option (d) is correct |

Some Basic Concepts of Chemistry | Page 27, Q. 1 | None of the options |

Hydrocarbons | Page 960, Q. 36 | Option (b) & (c) are correct |

Purification, Classification and Nomenclature of Organic Compounds | Page 752, Q. 130 | Option (d) is correct |

General Organic Chemistry | Page 842, Q. 77 | Option (c) is correct |

Hydrocarbons | Page 952, Q. 64 | Mistake in question |

d- and f-Block Elements | Page 1623, Q. 59 | Option (b) & (d) are correct |

Haloalkanes and Haloarenes | Page 1808, Q. 1 | Option (c) is correct |

Electrochemistry | Page 1220, Q. 32 | Question is wrong |

Amines | Page 2136, Q. 21 | Option (d) is correct |

Amines | Page 2147, Q. 8 | None of the options |

The p-Block Elements (Nitrogen, Oxygen, Halogen and Noble Family) | Page 1549, Q. 157 | Option (d) is correct |

General Principles & Processes of Isolation of Elements | Page 1456, Q. 8 | Option (a) is correct |

Ionic Equilibrium | Page 513, Q. 108 | Option (d) is correct |

Nuclear Chemistry | Page 1360, Q. 29 | Option (b) is correct |

Electrochemistry | Page 1219, Q. 5 | Option (b) is correct |

General Principles & Processes of Isolation of Elements | Page 1464, Q. 10 | Q. is wrong |

General Principles & Processes of Isolation of Elements | Page 1470, Q. 33 | Option (b) is correct |

General Principles & Processes of Isolation of Elements | Page 1471, Q. 61 | A- q, r |

General Principles & Processes of Isolation of Elements | Page 1471, Q. 63 | E- r, F-u |

The p-Block Elements (Nitrogen, Oxygen, Halogen and Noble Family) | Page 1547, Q. 107 | Option (e) is correct |

d- and f-Block Elements | Page 1626, Q. 138 | Solution is wrong but answer is correct |

PHYSICS JEE

CHAPTER NAME | LOCATION | ERROR |

Thermodynamics | QUESTIONS | Download Question here http://bit.ly/2xJRJqN |

Units, Dimensions and Measurement | Page 63, Q. 30 | Correct answer is option (c) |

Units, Dimensions and Measurement | Page 69, Q. 104 | Correct answer is option (b) |

Units, Dimensions and Measurement | Page 70, Q. 119 | Correct answer is option (b) |

Motion in One Dimension | Page 136, Q. 118 | Correct answer is option (c) |

Motion in One Dimension | Page 130, Q. 53 | Correct answer is option (c) |

Motion in Two Dimension | Page 196, Q. 9 | Correct answer is option (a) |

Newton's Laws of Motion | Page 246, Q. 11 | Correct answer is option (d) |

Newton's Laws of Motion | Page 255, Q. 2 | Correct answer is option (d) |

Work, Energy, Power and Collision | Page 367, Q. 45 | Correct answer is option (a) |

Rotational Motion | Page 470, Q. 24 | Correct answer is option (a) |

Rotational Motion | Page 472, Q. 32 | Correct answer is option (a) |

Thermometry, Thermal Expansion and Calorimetry | Page 695, Q. 9 | Correct answer is option (d) |

Kinetic Theory of Gases | Page 740, Q. 8 | Correct answer is option (a) |

Elasticity | Page 597, Q. 58 | Correct answer is option (a) |

Surface Tension | Page 628, Q. 17 | Correct answer is option (a) |

Fluid Mechanics | Page 664, Q. 17 | Correct answer is option (c) |

Current Electricity | Page 1313, Q. 58 | Correct answer is option (a) |

Current Electricity | Page 1316, Q. 106 | Correct answer is option (d) |

Elasticity | Page 599, Q. 3 | Correct answer is option (b) |

Current Electricity | Page 1312, Q. 41 | Correct answer is option (d) |

Magnetic Effect of Current | Page 1430, Q. 57 | Correct answer is option (c) |

Simple Harmonic Motion | Page 871, Q.16 | Correct answer is option (a) |

Electromagnetic induction | Page 1525 and 1547, Q.28 | Question and Solution is wrong |

Electromagnetic induction | Page 1545, Q.15 | Correct answer is option (a) |

Alternating Current | Page 1599, Q.100 | Question is missing |

Alternating Current | Page 1600, Q.114 | Correct answer is option (b) |

Alternating Current | Page 1603, Q.155 | No Answer is correct in given option, Correct answer is 31.8 Hz |

Electron, Photon Photoelectric Effect | Page 1670, Q. 25 | Solution and answer key is wrong, Correct answer is (d). |

Ray Optics | Page 1890, Q.21 | Solution is correct but answer key is wrong, Correct option is (b) |

Ray Optics | Page 1899, Q.73 | Solution is correct but answer key is wrong, Correct option is (d) |

Wave Optics | Page 2007, Q.48 | Solution is wrong but answer key is correct, Correct option is (b) |

Wave Optics | Page 2016, Q.103 | Solution is correct but answer key is wrong, Correct option is (b) |

Communication | Page 1863, Q. 23 | Solution is correct but answer key is wrong, Correct option is (c) |

Thermodynamics | Page ix, Q.12 | Solution is correct but answer key is wrong, Correct option is (c) |

Units, Dimensions and Measurement | Page 81, Q.34 | Solution is correct but answer key is wrong, Correct option is (c) |

Rotational Motion | Page 433, Q. 37 | Question is incomplete. |

Gravitation | Page 534, Q.64 | Plots (a) & (c) and (b) & (d) are same in Options. Correct option is (c) . |

Work, Energy, Power and Collision | Page 341, Q.107 | Option (a) and (c) are same. Correct option is (d). |

Newton's Laws of Motion | Page 262, Q. 30 | In all options units are wrong and the correct unit is ms-2 |

Electrostatics | Page 1123, Q.98 | In all options units are wrong and the correct unit is μF. |

Fluids Mechanics | Page 675, Q.7 | Option (ab) is correct. (c) is not correct. |

Rotational Motion | Page 490, Q.89 | correct option is (b) |

Transmission of Heat | Page 852, Q.11 | correct option is (a) |

Transmission of Heat | Page 853, Q.18 | correct option is (c) |

Transmission of Heat | Page 854, Q.27 | correct answer is 9. |

Transmission of Heat | Page 854, Q.28 | correct answer is 1/3. |

Magnetic Effect of Current | Page 1423, Q. 94 | Solution is correct but answer key is wrong, Correct option is (a) |

Magnetic Effect of Current | Page 1396, Q.57 | Solution and answer key is wrong, Correct answer is (c). |

Simple Harmonic Motion | Page 912, Q.31 | Solution and answer key is correct. Error in final answer, Correct answer is T = .30 (approx) |

Alternating Current | Page 1599, Q.100 | Question is incomplete in book. |

Electronics | Page 1828, Q. 38 | Error in question. Take collector supply voltage as current gain. |

Electronics | Page 1834, Q.39 | Error in question. |

Wave Optics | Page 2006, Q.39 | Solution is correct but answer key is wrong, Correct option is (d). |

Wave Optics | Page 2016, Q.103 | Solution is correct but answer key is wrong, Correct option is (b). |

Alternating Current | Page 1590, Q. 22 | Solution and answer key is wrong, Correct answer is (b). |

Thermodynamics | Page 783, Q.21 | Solution is correct but answer key is wrong, Correct option is (b). |

Thermodynamics | Page 785, Q.32 | It is a controversial Question of KVPY 2016. The correct answer is |

Work, Energy, Power and Collision | Page 338, Q.88 | Solution and answer key is wrong, Correct answer is (b). |

Work, Energy, Power and Collision | Page 342, Q.17 | Solution and answer key is wrong, Correct answer is (c). |

Motion in one dimension | Page 105, Q.62 | Solution and answer key is wrong, Correct answer is (d). |

Motion in one dimension | Page 113, Q.1 | Solution and answer key is wrong, Correct answer is (b). |

Electrostatics | Page 1147, Q.73 | Solution is incomplete and answer key is wrong, Correct option is (c). |

Electrostatics | Page 1170, Q.3 | Solution is correct but answer key is wrong, Correct option is (b). |

Current Electricity | Page 1290, Q.27 | Diagram is missing in this Question. |

Thermodynamics | Page (xx), Q.34 | Solution is correct but answer key is wrong. Correct answer is option (c) |

Newton's Laws of Motion | Page 258, Q. 40 | Diagram is missing in Question but answer key is correct, Correct option is (d). |

Rotational Motion | Page 476, Q.35 | Solution is wrong but answer key is correct, Correct option is (a) |

Simple Harmonic Motion | Page 911, Q.14 | Solution and answer key is wrong, Correct answer is (c). |

Rotational Motion | Page 428, Q.54 | Solution is wrong |

Rotational Motion | Page 447, Q.64 | The question is incomplete. |

Rotational Motion | Page 449, Q.33 | The correct answer in options is missing. The correct answer is given in solution.i.e. 1470 J. |

Ray Optics | Page 1893, Q.28 | Answer Key and Solution are wrong. Correct answer is option (b). |

Units, Dimensions and Measurement | Page 50, Q. 50 | The given dimension in question and solution is wrong. |

Units, Dimensions and Measurement | Page 51, Q. 60 | The given dimension in options are wrong. |

Magnetism | Page 1476, Q. 68 | Solution is correct but answer key is wrong. Correct answer is option (a) |

Magnetic Effect of current | Page 1427, Q. 2 | Answer Key and Solution is wrong. Correct answer is option (d). |

Magnetic Effect of Current | Page 1441, Q. 129 | Solution is wrong |

MATHEMATICS

CHAPTER NAME | LOCATION | ERROR |

Trigonometric Ratios, Functions and Identities | Page 422, Q. 17 | Extra 2 + 2cos4x |

Functions, Limits, Continuity and Differentiability | Page 1279, Q. 55 | Solution is wrong (Answer is correct) |

Complex Numbers | Page 70, Q. 73 | Question is wrong |

Complex Numbers | Page 57, Q. 27 | Solution is wrong (Answer is correct) |

Complex Numbers | Page 72, Q. 34 | Option (c) is correct |

Logarithms and Partial Fractions | Page 29, Q. 1 | Solution is wrong (Answer is correct) |

Set Theory & Relations | Page 14, Q. 51 | Option (d) is correct |

Set Theory & Relations | Page 14, Q. 53 | Option (c) & (d) are correct |

Complex Numbers | Page 89, Q. 13 | Option (b) & (d) are correct |

Complex Numbers | Page 92, Q. 52 | Option (a) & (b) are correct |

Complex Numbers | Page 120, Q. 49 | Option (a), (b) & (c) are correct |

Progressions | Page 187, Q. 22 | Option (a) & (c) are correct |

Progressions | Page 204, Q. 5 | Option (b) & (d) are correct |

Quadratic Equations and Inequations | Page 78, Q. 78 | Option (a) is correct |

Quadratic Equations and Inequations | Page 235, Q. 39 | Correction in question |

Quadratic Equations and Inequations | Page 242, Q. 2 | Option (c) is correct |

Permutations and Combinations | Page 310, Q. 20 | Correction in question |

Permutations and Combinations | Page 312, Q. 39 | All options are wrong |

Binomial Theorem and Mathematical Induction | Page 354, Q. 24 | Correction in question & solution |

Binomial Theorem and Mathematical Induction | Page 368, Q. 51 | Wrong Answer |

Binomial Theorem and Mathematical Induction | Page 368, Q. 57 | Wrong Answer |

Probability | Page 1780, Q. 21 | Option (b) is correct, Given solution is correct |

Probability | Page 1782, Q. 42 | Option (b) is correct, Given solution is correct |

Probability | Page 1783, Q. 52 | Option (c) is correct, Given solution is correct |

Circle and System of Circles | Page 712, Q. 62 | Correct option is (4) |

Circle and System of Circles | Page 710, Q. 46 | Correct option is (d) |

Differentiation and Applications of Derivatives | Page 1382, Q. 21 | Printing Mistake in Question |

Vector Algebra | Page 1045, Q. 31 | Option (a) is correct |

Vector Algebra | Page 1025, Q. 61 | Printing Mistake in Question |

Co-ordinate Geometry of Three Dimensions | Page 1099, Q. 3 | Option (c) is correct |

Vector Algebra | Page 1081, Q. 48 | Solution given in Q. 49 |

Vector Algebra | Page 1081, Q. 49 | Solution given in Q. 48 |

Functions, Limits, Continuity and Differentiability | Page 1289, Q. 178 | Option (b) is correct |

Functions, Limits, Continuity and Differentiability | Page 1281, Q. 82 | Correct answer is 3/4 |