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JEE Main 20th July 2021 Shift 1 Question Paper Analysis (Available), Answer Key, Solutions

Sakunth Kumar
Sakunth KumarPublished On: July 27, 2021 | WBJEE

Day 1 & Shift 1 of JEE Main 2021 Phase 3 has been conducted on July 20. Check the detailed exam analysis of JEE Main 20th July Shift 1 exam along with memory-based questions, solutions and answer key. The overall difficulty level of the paper was moderate.

JEE Main 20th July 2021 Shift 1 Question Paper Analysis, Answer Key, Solutions

Day 1 and Shift 1 of JEE Main 2021 Phase 3 has been conducted on July 20 from 9:00 AM to 12:00 PM. As per the revised exam pattern of JEE Main 2021, the question paper has 90 questions, and there is an internal choice for Numerical (NAT) questions. Out of 10 NAT questions from each section (Physics, Chemistry and Mathematics), the candidates were required to answer any five questions. One of the major advantages of the NAT questions is that there is no negative marking. You can check the detailed exam analysis of JEE Main 2021 Phase 3 exam scheduled on July 20 Shift 1 here along with the memory-based question paper and answer key. The officialanswer key of JEE Main July 2021 will be released within 2-3 days after the exam. On the other hand, JEE Main 2021 Phase 3 result is expected to be released within 7 days after the exam.

Expected Important Topics for JEE Main August 2021 (Phase 4)

JEE Main 20th July Shift 1 Analysis Video

Major Highlights of JEE Main 20th July 2021 Shift 1 Analysis

Some of the major highlights of JEE Main 20th July 2021 Shift 1 analysis is as follows -

  • Many students felt that the difficulty level of the paper was moderate
  • The difficulty level of Physics and Chemistry is easier than Mathematics
  • Mathematics is a bit tough and lengthy. The Mathematics section was time-consuming
  • There were 2 questions from Biomolecules
  • Organic and Inorganic Chemistry dominated the Chemistry paper
  • From Physics, each topic had at least one question
  • From Physics, there were 2 questions from Thermodynamics
  • The chemistry section had more theoretical questions 
  • Physical Chemistry questions were mostly integer-type questions
  • Mathematics section too covered Calculus, Coordinate Geometry, Algebra etc.
  • 14-16 questions from each section can be considered as a good attempt

JEE Main 20th July 2021 Shift 1 Question Paper Analysis (Detailed)

The detailed exam analysis of JEE Main 20th July 2021 Shift 1 has been updated here. This analysis is based on student and expert feedback. If you had appeared for the exam in this shift, you can share your feedback or exam review on E-Mail ID sakunth.kumar@collegedekho.com

Aspect

Analysis

Overall Difficulty Level of the Exam

Moderate

Difficulty Level of Mathematics

Moderately Difficult

Difficulty Level of Physics

Moderately

Difficulty Level of Chemistry

Moderately Easy

Topics with More Weightage in Mathematics

  • Integrals
  • Probability
  • Differential Calculus
  • Vector & 3D

One question covered from each chapter on an average

Topics with More Weightage in Physics

  • Electrodynamics
  • Mechanics

One question covered from each chapter on an average

Topics with More Weightage in Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Difficulty Level of NAT Questions

Average

Expected Average Number of Good Attempts

40+

Expected Number of Very Good Attempts

65+

Difficulty Level Comparison – July 20 Shift 1 vs March 16 Shift 1 vs Feb 24 Shift 1

Almost Similar

You can also check the shift-wise subject or topic-wise weightage of JEE Main 2021 Phase 3 exam by clicking on the links below.

Physics

JEE Main 2021 Phase 3 Physics Question Paper Analysis, Answer Key

Chemistry

JEE Main 2021 Phase 3 Chemistry Question Paper Analysis, Answer Key

Mathematics

JEE Main 2021 Phase 3 Mathematics Question Paper Analysis, Answer Key

Answer Key

JEE Main 2021 Answer Key

Related Links

What is a Good Score in JEE Main 2021?

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JEE Main 2021 Exam Analysis (Phase 3, March, February – All Shifts)

JEE Main March vs February 2021 Exam Analysis

JEE Main 20th July 2021 Shift 1 Question Paper & Answer Key

You can download the PDF of JEE Main 20th July 2021 Shift 1 memory-based question paper and answer key by clicking on the links below. The answer key available in the links below is prepared by different coaching institutes.

JEE Main July 2021 (Phase 3) Question Paper & Answer Key(Available)

JEE Main 2021 Phase 3 Answer Key

JEE Main March 2021 Question Paper

JEE Main February 2021 Question Paper

Division of Questions in JEE Main 20th July 2021 Shift 1

The division of Class 11 & 12 syllabi in JEE Main 20th July 2021 Shift 1 is as follows -

SubjectTotal No. of Questions from Class 11 SyllabusTotal No. of Questions from Class 12 Syllabus
Chemistry1210
Mathematics1011
Physics1413

JEE Main 20th July Shift 1 Physics Chapter-Wise Weightage

The Physics chapter-wise weightage of JEE Main 20th July Shift 1 is as follows -

Name of the ChapterTotal No. of Questions
Electrodynamics7
Heat & Thermodynamics3
Mechanics9
Modern Physics5
Optics1
SHM & Waves2

JEE Main 20th July Shift 1 Physics Topic-Wise Weightage

The topic-wise weightage of JEE Main 20th July Shift 1 exam is as follows -

Name of the TopicTotal No. of Questions
Current Electricity2
Electromagnetic Field1
Electrostatics2
Electromagnetic Induction1
Alternating Current1
KTG & Thermodynamics2
Calorimetry & Thermal Expansion1
Rigid Body Dynamics1
Centre of Mass1
Rectilinear Motion & Vectors1
Gravitation1
Unit & Dimension1
Circular Motion1
Work, Power & Energy1
Newton's Law of Motion1
Relative Motion1
Semiconductors1
Modern Physics3
Nuclear Physics1
Geometrical Optics & Physical Optics1
Sound Waves1
String Wave1

JEE Main 20th July Shift 1 Chemistry Chapter-Wise Weightage

The chapter-wise weightage of JEE Main 20th July Shift 1 Chemistry is as follows -

Name of the ChapterTotal No. of Questions
Inorganic Chemistry-17
Inorganic Chemistry-24
Organic Chemistry-11
Organic Chemistry-27
Physical Chemistry-17
Physical Chemistry-23

JEE Main 20th July Shift 1 Chemistry Topic-Wise Weightage

The topic-wise weightage of JEE Main 20th July 2021 Shift 1 is as follows -

Name of the TopicTotal No. of Questions
Chemical Bonding1
Environmental Chemistry1
Periodic Table & Periodicity in Properties1
s-block2
Hydrogen & its Compounds1
p-block1
Coordination Compounds2
Metallurgy1
Qualitative Analysis1
General Organic Chemistry1
Biomolecules2
Polymers1
Alkyl Halide, Alcohol & Ether1
Grignard Reagent, Reduction, Oxidation & Hydrolysis1
Amines1
Hydrocarbon1
Mole Concept2
Atomic Structure & Nuclear Chemistry3
Thermodynamics & Thermochemistry2
Electrochemistry1
Surface Chemistry1
Solution & Colligative Properties1

JEE Main 20th July Shift 1 Mathematics Chapter-Wise Weightage

The chapter-wise weightage of JEE Main 20th July 2021 Shift 1 is as follows -

Name of the ChapterTotal No. of Questions
Binomial Theorem3
Complex Numbers1
Coordinate Geometry2
Differential Calculus4
Integral Calculus2
Permutation & Combination1
Probability2
Vector 3D3
Statistics1
Quadratic Equation1
Trigonometry1
Matrix & Determinants1

JEE Main 20th July Shift 1 Maths Topic-Wise Weightage

The topic-wise weightage of JEE Main 20th July Shift 1 Mathematics exam is as follows -

Name of the TopicTotal No. of Questions
Binomial Theorem3
Complex Numbers1
Parabola2
Limit, Continuity & Differentiability1
Functions1
Application of Derivatives1
Continuity & Derivability1
Definite Integration2
Permutation & Combination1
Probability2
Vector2
Co-Ordinate Geometry1
Statistics1
Quadratic Equation1
Solution of Triangle1
Matrices & Determinants1

JEE Main July 2021 (Phase 3) Exam Analysis – All Shifts

You can check the detailed exam analysis of JEE Main 2021 Phase 3 for all shifts by clicking on the links below.

JEE Main 20th July 2021 Shift 1 Question Paper Analysis – Available on this Page

JEE Main 20th July 2021 Shift 2 Question Paper Analysis

Overall Analysis of JEE Main 20th July 2021 (Day 1)
JEE Main 20th July vs 19th March 2021 Analysis - Detailed ComparisonPredicted Important Topics for JEE Main 22nd July 2021JEE Main 20th July vs 24th Feb Question Paper Analysis - Detailed Comparison
JEE Main 22nd July 2021 Shift 1 Question Paper AnalysisJEE Main 22nd July 2021 Shift 2 Question Paper AnalysisOverall Analysis of JEE Main 22nd July 2021 (Day 2)
JEE Main 25th July 2021 Shift 1 Question Paper AnalysisJEE Main 25th July 2021 Shift 2 Question Paper AnalysisOverall Analysis of JEE Main 22nd July 2021 (Day 3)
JEE Main 27th July 2021 Shift 1 Question Paper AnalysisJEE Main 27th July 2021 Shift 2 Question Paper AnalysisOverall Analysis of JEE Main 27th July 2021 (Day 4)

For the latest JEE Main 2021 news & updates, stay tuned to CollegeDekho.

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