JEE Main Analysis 2018 For Offline Paper 1: Complete Analysis By Experts

JEE Main Analysis: The Central Board of Secondary Education (CBSE) conducted the JEE Main 2018 offline exam on 8th April 2018. Experts at Embibe spoke to students who appeared in the exam and have analyzed the JEE Main 2018 paper in details. The JEE Main Analysis gives detailed insights into the offline paper – the overall and sectional level of difficulty, distribution of questions, ideal time, type of questions asked, etc.

The JEE Main Analysis will give students an idea about how they have performed in the exam, which, in turn, will help them predict their chances of making it to their dream college. Students who are appearing in the JEE Main online exam 2018 on 15th and 16th April 2018 will also get an idea about what to expect in the exam. In this article, we will give detailed JEE Main Analysis of the offline paper held on 8th April 2018. Read on to find out the JEE Main Analysis.

Detailed JEE Main Analysis For 2018 Offline Paper

Analyzing the JEE Main 2018 Offline Paper: Embibe has the ability to perform a unique JEE Main Analysis of the Offline Paper. A large amount of student attempt data collected on our platform over many years along with Embibe’s Knowledge Graph gives us insights into the paper on various dimensions – difficulty, time to solve, important concepts and chapters, and concepts and chapters where students are likely to make mistakes.

JEE Main Analysis: How Difficult Was The Paper?

Questions are rated on a difficulty scale of 1 to 10 (with 1 being the least difficult and 10 being the most difficult) specific to an exam. For this year’s JEE Main Offline Paper, we see that the questions had an average difficulty level of 4.011. The box plot below shows the distribution of difficulty levels of questions in this year’s paper versus those from the previous two years. We can see that this year, although the average difficulty level was similar to the previous years, the question-level difficulty spread was much lower. The JEE Main Analysis shows that the questions tended to be of moderate difficulty level (levels 3-5) with a few outliers at very easy (level 2) and tougher (level 6 and 7).

The bar chart below shows the average difficulty level for each of the three subjects – Mathematics, Chemistry, and Physics. We can see that this year, Mathematics was, on average, the toughest section.

JEE Main Analysis: How Long Was The Paper?

Questions are also assigned an Ideal Time – the average time it would take top students to correctly answer a question. According to out JEE Main Analysis of the Offline Paper, the questions had an average ideal time of 84 seconds. This means that the best and brightest of students attempting this year’s paper would have about 54 minutes to revise the paper. The figure below shows the distribution of ideal times for questions in this year’s paper versus the previous two years.

We notice that this year’s paper is lengthier than previous years as there were a number of outlier questions with large ideal times.

The bar chart below shows the average ideal time for each of the three subjects – Mathematics, Chemistry, and Physics. We can see that this year, Mathematics was on average the longest section.

JEE Main Analysis: How Were The Questions Spread Across Chapters And Concepts?

In total, the 90 questions in this year’s JEE Main Offline Paper covered 61 chapters from Physics, Chemistry, and Mathematics. The figure below shows how many chapters were used in multiple questions this year. We can see that of the 61 chapters that were tested this year, 25 chapters had multiple questions asked.

JEE Main Analysis: List Of Chapters Asking 3 Questions:

Chemistry

1. Chemical Bonding and Molecular Structure
2. Ionic Equilibrium

Physics

1. Current Electricity
2. Wave Optics

JEE Main Analysis: List Of Chapters Asked Every Year:

If we look at all the JEE Main papers since 2013 (both online and offline), we see that there are 15 chapters from which questions are always asked. These chapters are listed below:

Physics

1. Oscillations (SHM)
2. Electrostatics
3. Magnetic Effects of Current
4. Electromagnetic Induction and Alternating Current
5. Semiconductors and Communication System

Chemistry

1. Chemical Kinetics
2. Chemical Bonding and Molecular Structure
3. Coordination Compounds

Mathematics

1. Sequences and Series (Progressions)
2. Binomial Theorem
3. Complex Numbers
4. Matrices and Determinants
5. Indefinite Integration
6. Point and Straight Line
7. Vector

Each question also requires the knowledge of some set of concepts to solve them. According to our JEE Main Analysis, there were 244 concepts covered in this year’s paper. This means that on average, a student would have to use between 2 and 3 concepts in order to solve a single question. The figure below shows how many concepts were used in multiple questions this year.

Our JEE Main Analysis reveals that of the 244 concepts that were tested this year, only 21 concepts, less than 10%, appeared in multiple questions.

JEE Main Analysis: List Of Concepts Asked In Multiple Questions:

Chemistry

1. Characteristics of equilibrium constant Kc
2. Chemical reactions
3. Reversible reactions
4. Acid dissociation constant for weak acids
5. Conditions of ionic bonding
6. Organometallic Compounds
   

Physics

1. Introduction to Circular motion
2. Head on 1D collision
3. Examples on Collision problem
4. Physical significance of moment of inertia
5. Calculation of moment of inertia
6. Theorems On Moment Of Inertia
7. Parallel Axis Theorem
8. Moment of inertia of uniform circular disc about perpendicular axis
   

Mathematics

1. Equation of Tangent to a Parabola
2. Summation of n, Square n and Cubic n Natural Number
3. Intercept form of Line
4. Locus of a Point and Line
5. Equation of a Line in 3D
6. Plane and Line
7. Recognition of Equation of Ellipse
   

JEE Main Analysis: What Skill Types Did The Questions Test For?

Any particular question in an exam paper requires the application of different types of skills to be able to correctly solve it within an acceptable amount of time. We tag every question with the specific skill type that it tests for. The figure below shows the distribution of skills that were covered by the questions in this year’s paper. We can see that Analysis and Application skill types accounted for over 90% of the questions asked, with Analysis type questions being more abundant.

JEE Main Analysis: In Which Concepts Will Students Not Do Well In This Year?

At Embibe, we have amazing data that captures how students perform on various concepts. This data is based on millions of student attempts collected over the years on our platform. Using this data for JEE Main Analysis, we have the following concepts where students will most likely go wrong, overtime, and make careless mistakes this year.

JEE Main Analysis: Top 3 Concepts Where Students Can Go Wrong This Year

JEE Main Analysis: Top 3 Concepts Where Students Can Go Overtime This Year

JEE Main Analysis: Top 3 Concepts Where Students Can Make Careless Mistakes This Year

With Embibe’s powerful algorithms and vast attempt data, we have a number of JUMP packs that allow students to target specific types of errors they may make. Looking at the concepts in this year’s paper and Embibe’s Jump packs, we see that:

• Embibe’s Overtime Attempts pack covers questions on 77.78% of the concepts likely to go overtime asked in this year’s exam
• Embibe’s Wasted Attempts pack covers questions on 80.37% of the concepts likely to be careless mistakes asked in this year’s exam

At Embibe, we have always believed that good data coupled with smart algorithms is the key to personalizing education at scale and enabling students to achieve their learning outcomes. The final section in our JEE Main Analysis drives from this point. It may not be possible for all students to love the entire syllabus as a whole and prepare with equal fervor across all content. However, one must prepare for the exam in the smartest possible manner. Embibe’s data-driven insights and preparation strategies make it possible for anyone to make the best use of the limited time available while preparing for some of the toughest exams in the world.

JEE Main Analysis: JEE Main Answer Key: The official JEE Main answer key will be released by CBSE on 24th April 2018 after which students can challenge the answer key till 27th April 2018. However, various institutes have already released the JEE Main answer key for the offline paper held on 8th April. Embibe too has released the JEE Main answer key 2018 for all sets of the offline exam along with the detailed solution to every question. You can also download the answer keys as issued by other coaching institutes. This will help students predict their JEE Main score and give them an idea about which college and branch they are likely to get.

The JEE Main result will be declared on 30th April 2018.

Students appearing in JEE Main 2018 online paper on 15th and 16th April must solve the JEE Main offline paper 2018 and see how much they are scoring. They must also solve the JEE Main 2018 predicted paper and revise the chapters they are weak at.

We hope this detailed article on JEE Main Analysis helps you. If you have any query regarding JEE Main Analysis, feel free to drop a comment below and we will get back to you.