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2021-06-08 15:37:02 Important Topics & Chapters for JEE Main 2021 Preparation

Generally, JEE Main, unlike JEE Advanced, is about covering the surface rather than going into depth. Larger the part of the JEE Main syllabus you have covered, better you remain in the battle. As the time is getting closer and only are few months are there to go, selective study comes into play. Below are the important topics for JEE Main preparation.

Important Topics of JEE Main Physics

The JEE Main Physics important chapters along with the topics are given below:

1. Dimensional Analysis – This chapter seems easy but don't you dare to underestimate it. It's a soft corner with really fruitful result.
2. Gravitation & Electrostatics – These chapters are conceptually synonymous to each other. Tackling these twins may really get you to a good score.
3. Current electricity.
4. Electromagnetic Induction, Waves & Sound, Geometrical Optics, Thermodynamics, Kinetic Theory of Gases.

Above topics are really a ray of hope for those who see Mechanics as their nightmares. These topics can really save you if physics has not been a good friend of yours so far.

Apart from that, Rotational dynamics is the favourite topic of JEE Main. So for those who really crave for a good score mustn't ignore it. Such topics which are the part of JEE Main 2020 but they don't find their place in JEE ADVANCED like Semiconductors is better contenders to appear in your question paper at the day of judgement.

Important Topics of JEE Main Maths

The JEE Main Maths important chapters along with the topics are given below:

Unlike Physics & Chemistry, Mathematics is a subject where prioritizing the topics isn't possible to a large extent. Mathematics of JEE Main attempts to cover all the sections with similar priorities.

Still, if you find yourself more familiar to Coordinate Geometry & you are threatened by trigonometry. Then, keep working at making your strong space really strong.

Like in the case of Differential calculus & Integral Calculus, students usually find the former easier.

Also, there are topics like mathematical reasoning and Limits and Functions which are supposedly the basic topics and we can expect at least two or more than two questions from these chapters. Probability also covers at least 6% of the entire section. In such cases, they may make the former their strong point. But again, Main is all about covering the larger surface, so being totally unaware of Integral may put you in trouble. So, avoid being completely selective. JEE Main Maths follows a fixed pattern. There are fixed number and almost fixed type of questions asked on fixed topics every year.

Important Topics of JEE Main Chemistry

The JEE Main Chemistry important chapters along with the topics are given below:

Chemistry is considered to be the most scoring subject of JEE. It is the best chance for rankers. For some, it is a support to stay in the race.
Important topics include :

1. Chemical Bonding & the periodic table: These are by far the most fundamental and the most important topics in Chemistry. You will be finding plenty of question from these corners.

2. Carbonyl Compounds & their derivatives: The best part about this topic is that it links many other topics of organic chemistry together.

3. Redox Reactions

4. Mole Concept

5. Solutions

6. Thermo-Chemistry & the Second Law of Thermodynamics.

Please note that these topics are the favourite topics of JEE Main as per the previous year trends, but JEE is expected to give surprises. That's what JEE is all about. So, be prepared for the worst circumstances.

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2021-06-08 15:37:02 PHYSICS FORMULAS

Magnetic effect of Electric Current

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2021-06-08 09:30:09 Tricks for Conversions in Organic Chemistry

Haloalkanes can give you every possible functional group. They can also help you in increasing the chain size. So you might want to convert your starting material to haloalkanes and then go to the desired product

Remember the series of oxidation/reduction: Hydrocarbons (with various substituents) can be oxidised to alcohols, then appropriate carbonyl compounds and lastly carboxylic acids (or their derivatives)

Strong oxidizing agents are KMnO4 and K2Cr2O7

Mild oxidising agents depending on the situation are CrO4, Ammoniacal AgNO3, Benedicts Solution, Fehling’s solution, Cu or CuO at 573K, Bromine water etc.

Any carboxylic acid derivative can be converted back to the carboxylic acid by hydrolysis.

There are possibilities of hydride and methyl to get the most stable intermediate (carbocation/free radical)

A most common reaction, if your starting material is an alkane, is free-radical halogenation.

Saytzeff/Markovnikov's rules must be kept in mind while dealing with alkenes (they are based on the electron displacement effects only)

Decarboxylation and ozonolysis could go-to methods for decreasing the number of carbon atoms

Grignard reagent gives you the much-needed Alkyl nucleophile, which can be used at appropriate places.

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