How to score 100+ in Chemistry in JEE Mains


Did you know? In recent times, JEE Main aspirants who have scored 100+ marks in Chemistry while scoring above average marks in the other two made it into the cutoff list. The best way to crack JEE Main exam is to score more than 100 marks in Chemistry. It is easily achievable thanks to the conducting body who asks mainly straightforward and easy questions.

Scoring high in Chemistry gets much easier when you study from relevant material and focus on topics with higher weightage. Let us explore the 5 best tips to score high in JEE Main Chemistry below.

5 Tips to score high in JEE Main Chemistry

The 5 tips mentioned below will help you achieve 100+ marks in Chemistry:

  1. Choose books published by reputed Authors- The JEE Main 2019 syllabus of Chemistry is divided into three sections- Organic Chemistry, Inorganic Chemistry & Numerical Chemistry. The table shown below contains the name of the books corresponding to name of the Authors.
S.No Name of Book Author Name
1 Organic Chemistry Morrison Boyd.
2 Inorganic Chemistry O.P. Tandon
3. Numerical Chemistry P. Bahadur
  1. Focus more on topics with higher weightage

As per the trend in previous years, the topics mentioned below contains the maximum weightage:

S.No Name of the chapter Most important topics
1. Chemical Kinetics Rate of Reaction

Rate Law

Order of Reaction

Zero & First Order Reaction

2. Chemical Bonding Fajan’s Rule


Molecular Orbital Theory

Hydrogen Bond

Electron Pair Effect

Bond Order

Diamagnetic And Paramagnetic Substances

Van der Waals’ Forces

Dipole-Dipole Interactions

3. Transition Elements Compounds of Copper & Zinc
4. S-Block Elements Periodicity

Alkali Metals

5. General Organic Chemistry Nomenclature of Organic Compounds

Structural Isomerism

Stereo Isomerism

Substitution Reactions

Addition Reactions

Elimination Reactions


Inductive Effect

Electromeric Effect


Mesomeric Effect


6. P-Block Elements Group 13 to Group 18 Elements

Trend Across the Periods

7. Redox Reactions Electronic Concepts

Oxidation Number & Oxidation State

8. Ionic Equilibrium Electrolytes

Common Ion Effect

Acids & Bases

Ostwald Dilution Law

Degree of Dissociation

Arrhenius Concept

Lewis Concept

pH Scale

Buffer Solutions

Salt Hydrolysis


9. Chemical Equilibrium Le-Chatelier’s Principle

Rate of Reaction

Equilibrium State

Law of Mass-Action

10. Coordination Compounds Double Salts & Coordination compounds

IUPAC Nomenclature

Werner’s Theory

11. Carboxylic Acid & Its Derivatives Conversion to Acid Chlorides

Conversion to Esters

Reduction of Acids to Alcohol

Halogenation of Aliphatic Acids


Functional Derivatives- Acids Chlorides

Functional Derivatives- Acid Anhydrides

Functional Derivatives- Amides

Functional Derivatives- Esters

12. Alcohol, Phenol & Ester Methods of Preparation- Alcohols

Physical Properties of Alcohol

Chemical Properties of Alcohols

RO-H Bond Cleavage

Characterization of Alcohols

Methods of Preparation- Phenols

Physical Properties of Phenols

Acidic Nature of Phenols

Ring Substitution

Kolbe Reaction

Reimer-Tiemann Reaction

13. Periodic Classification of Elements Modern Periodic Table

Aufbau Principle

  1. Rely on NCERT book for Inorganic & Organic Chemistry

Whether a JEE Main exam or the CBSE Class XII Board Exam, NCERT books are best in every situation. Practising from NCERT increases your chance to score 100+ marks in Chemistry as it contains standard questions that are explained well in very easy language.

4. Try to solve each question within 1 minute 30 seconds

No amount of hard work will be enough to score high in JEE exam if you are not solving a question within the prescribed time frame. You can easily solve the questions related to organic & inorganic Chemistry within the given time bracket.

  1. Practice by writing down the formulas, derivations & conversions

Physical Chemistry- It contains the numerical part as well as the derivations, therefore practising through writing them down is the easiest way to master them.

Organic Chemistry- At times, conversions become lengthy while you are solving them mentally, but practicing them in writing will help you solve not only faster but in an accurate manner.

Inorganic Chemistry- This section is all about complex equations and characteristics of elements in the periodic table. Writing them down daily will help you have a strong grip over them.

There are countless tips to score 100+ marks in JEE Main Chemistry but in the end, it’s all down to your mindset while solving the exam.  

Don’t forget to download JEE Main preparation app and Tuition classes for O-Level Chemistry. It provides free study notes, quizzes, mock test, previous year papers, and all the updates related IIT JEE exams.