JEE MAIN 2018 NEWS
NATIONAL LEVEL ONLINE/OFFLINE TEST
JEE Main Exam is conducted by CBSE all over India. This exam is conducted to get admission in Under Graduate (UG) Engineering Programmes at various top ranking institutes. JEE Main Exam has mainly two papers. Paper 1 is for the aspirants who wants to go in engineering programmes. Paper 2 is for the aspirants who want admission in B.Arch. or B.Plann Degree courses. If you are confused between the courses, then you may answer both the Papers. JEE Main 2016 will be conducted on 3rd April, 2016 and this will be offline exam for both the papers. On 9th and 10th April, 2016 the only JEE Main 2016 Paper 1 Online Mode will be held. Both of these papers are held in 3 hours duration. Paper 1 has Physics, Chemistry and Mathematics as the subjects which consists of objective types questions.
JEE Main Exam has a total number of 30 questions in chemistry section. Each question has 4 different multiple choices. Every question in this section carries 4 marks. The correct choice marked answer will get you achieve 4 marks and the wrong choice marked answer will deduct -1. So be careful while marking the answers, if you’re very sure then only go with your choice else move on.
In this article, we are providing you the JEE Main Chemistry Paper Analysis by covering all the aspects of the marks distribution according to the chapters covered in CBSE Syllabus, the number of questions asked from +1 and +2 level, the most important and compulsory topics to be prepared to clear the JEE Main Exam, changes from last year paper analysis and at last providing you the sample questions on chemistry.
|JEE Main Exam||Paper Analysis|
|JEE Main April 9 Paper Analysis||Check Here|
|JEE Main April 8 Paper Analysis||Check Here|
The following table will get you the fresh idea regarding the total marks distribution of chapters contained in the Chemistry Syllabus according to Central Board of Secondary Education. This table contains the data from previous year paper analysis. The number of questions asked from particular topic fluctuates every year, so we can only predict the possibility of the outcome. The weightage column shows the fluctuation of marks and percentage of the questions asked. Here you go and have all the detail analysis-
|S.no||Chapter Name||Number of questions asked in Year||Weightage|
|13||Solution and Colligative Properties||1||1||2||3-10||4-12|
|16||General Organic Chemistry||-||1||2||3-6||4-8|
|20||Alcohols and Ethers||-||-||1||3-6||4-8|
|21||Aldehydes and Ketones||1||1||-||3-6||4-8|
|22||Carboxylic Acids and their Derivatives||-||1||1||3-6||4-8|
|24||Carbohydrates, Amino Acids and Polymers||3||3||1||3-10||4-12|
|27||Transition Elements and Co-Ordination Chemistry||4||3||3||3-13||8-16|
|28||Periodic Table and Representative Elements||4||1||3||3-13||4-16|
Following is the graph showing at what aspect the number of questions asked at +1 and +2 level. It is not actually fixed that what number of questions may be asked from these classes, they may differ. But if we see the data available from 2013, 2014 and 2015 year, there is no fixed number of questions asked from class 11th and class 12th.
From the past 10 years the level of difficulty of the exam has been dropped. There are no more than 3-4 questions that are asked out of NCERT Books. In the following graph, it can be seen that, the number of difficult questions asked in year 2015 has been dropped as compared to the number of difficult questions asked in year 2014.
|Level of Questions, Year||2015||2014||2013|
Here we are providing you the topics of Chemistry Section that are to be prepared for JEE Main 2017, on the scale of most important, important and less important topics. Here we go-
First of all, if we talk about any syllabus change in the JEE Main Exam, there is no change in the syllabus of chemistry. Although the questions asked in chemistry last year were not that tough. Students are requested to pay little more attention to this section because it is scoring and last year data also defines that students had difficulty in solving the numeric questions.
The overall weightage of chemistry in JEE Main 2015 is as-
(1) d – d transition
(2) L → M charge transfer transition
(3) s – s* transition
(4) M → L charge transfer transition
Reason: The reaction between nitrogen and oxygen requires high temperature.
(1) Both assertion and reason are correct, but the reason is not the correct explanation for the assertion
(2) The assertion is incorrect, but the reason is correct
(3) Both the assertion and reason are incorrect
(4) Both assertion and reason are correct, and the reason is the correct explanation for the assertion
(4) Aluminium hydroxide
(1) Al2O3 is mixed with CaF2 which lowers the melting point of the mixture and brings conductivity
(2) Al3+ is reduced at the cathode to form Al
(3) Na3AlF6 serves as the electrolyte
(4) CO and CO2 are produced in this process
(A) TiCl3 (i) Wacker process
(B) PdCl2 (ii) Ziegler – Natta polymerization
(C) CuCl2(iii) Contact process
(D) V2O5 (iv) Deacon’s process
(1) (A) – (ii), (B) – (i), (C) – (iv), (D) – (iii)
(2) (A) – (ii), (B) – (iii), (C) – (iv), (D) – (i)
(3) (A) – (iii), (B) – (i), (C) – (ii), (D) – (iv)
(4) (A) – (iii), (B) – (ii), (C) – (iv), (D) – (i)
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