JEE Main 2022: Chemistry Important Topics

JEE Main 2022: Chemistry

JEE Main is a national-level examination for admission in top engineering colleges such as NITs, IIITs, and other private universities. The questions in JEE Main examination are asked from three subjects: Mathematics, Physics, and Chemistry. Mathematics and physics require numerical practice while chemistry requires multiple revisions and understanding of concepts. The Chemistry section includes objective questions from Physical Chemistry, Organic Chemistry, and Inorganic Chemistry. Purification and Characterization of Organic Compounds, Chemical Thermodynamics, Chemical Bonding, Classification of Elements and Periodicity in Properties, Hydrogen, Organic Compounds containing Halogens and Molecular Structure, and other essential topics are covered. We will discuss the marking distribution, weightage, and important topics of chemistry in this article. Stay tuned and read the entire article to get the most out of it and bookmark this page to get all the latest information regarding JEE Main 2022.

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JEE Main 2022 – Chemistry Exam Pattern 

In the below table we have given the complete exam pattern of chemistry. The students appearing in JEE Main 2022 must know the exam pattern of chemistry because it is the first step to start preparation for JEE Main. Have a look at the table given below:

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IIT JEE Main 2022 – Marking Scheme of Chemistry

JEE Main is considered to be the toughest entrance examination in India. Some students find chemistry tough and some find it easy. In JEE Main, there will be 30 questions asked from chemistry itself. Out of 30 questions, 20 questions are multiple-choice questions and 10 questions are numerical value-based. In which, the students have to answer 25 questions. Students will get +4 marks for each right answer and 1 mark will be deducted for each wrong answer. There will be no negative marking for questions based on numerical values. It is greatly recommended that candidates do not fill out more than one option on the OMR form. If they do, the question will be marked incorrectly, and you will receive a negative marking. If the students did not attempt questions there zero marks will be awarded. Check the table below:   

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JEE Main 2022 – Chemistry Weightage 

Below we have given the chapter-wise weightage of chemistry. The students must know the weightage of each chapter to get an idea of important chapters. Check the table below to know the chapter-wise weightage of chemistry in JEE Main 2022.

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JEE Main 2022 – Most Important Topics of Chemistry

Below we have provided the most important chapters of chemistry. The students preparing for JEE Main 2022 must go through all the chapter listed below: 

Co-ordination Compounds

1. Addition Compounds or Molecular Compounds
2. Terminologies Related to Coordination Compounds
3. Types of Ligands – 1
4. Oxidation Number
5. Coordination Number

Purification and Characterisation of Organic Compounds

1. Sublimation and Crystallisation
2. Distillation under reduced pressure and Steam distillation
3. Chromatography
4. Test for Halogens
5. Duma’s Method

Some Basic Principles of Organic Chemistry

1. Functional Group
2. IUPAC Nomenclature – 1
3. Carbocations
4. Carbanions
5. Alkyl Free Radicals

Organic Compounds containing Halogens

1. Nature of C-X bond and Physical Properties
2. Reaction with PCl5, PCl3, SOCl2 and HX
3. Strong and Weak bases
4. SN2 Reaction
5. SN1 Reaction

Organic Compounds containing Oxygen

1. Grignard Reagent – 1
2. Reduction by LiAlH4 and NaBH4
3. Acylation and Oxidation of Alcohols
4. Reaction of Phenols with dil. HNO3
5. Preparation of Aldehydes

Chemistry in Everyday Life

1. Analgesics
2. Antibiotics
3. Preservatives

Principles Related to Practical Chemistry

1. Preliminary Test with Dilute Sulphuric Acid (Systematic Analysis of Anions):
2. Analysis of Cations

Chemical Bonding and Molecular Structure

1. Lewis Representation of Simple Molecules (Lewis Structure)
2. Limitations of The Octet Rule
3. Bond Parameters: length, angle, energy, strength
4. Fazan’s Rule and Covalent Character in Ionic Bond
5. p?-p? and p?-d? Bonding

Classification of Elements and Periodic table

1. Long form of Modern periodic table
2. Classification of Elements : s-block
3. Atomic Radius of Elements
4. Variation of Atomic Radii and ionic radii
5. Ionisation Enthalpy or Ionisation Potential

Some basic concepts in chemistry

1. Empirical Formula And Molecular Formula
2. Mole concept and molar Mass
3. Stoichiometry, Stoichiometric Calculations And Limiting Reagent
4. Reactions in Solutions

States of matter

1. The Gas Laws- Boyle’s Law (Pressure-Volume Relationship)
2. Intermolecular Forces
3. Ideal Gas Equation
4. Dalton’s Law of Partial Pressure
5. Graham’s Law of Diffusion

Atomic Structure

1. Photoelectric effect
2. Line spectrum of hydrogen
3. Radius, velocity, and the energy of nth Bohr orbital
4. Debroglie wavelength
5. Heisenberg’s uncertainty principle

Chemical Thermodynamics

1. Path, State Function, Types Of Process
2. Reversible, Irreversible, Polytropic Process
3. First Law Or Law Of Conservation Of Energy
4. Isothermal Reversible And Isothermal Irreversible
5. Adiabatic Reversible And Irreversible Expansion

Redox Reaction and Electrochemistry

1. Balancing of Redox Reactions
2. Oxidation Number and Oxidation State
3. Types of Redox Reactions
4. Balancing of Redox Reaction: Ion Electrode Method
5. Balancing of Disproportionation Redox Reaction: Ion Electrode Method

General Principle and process of Isolation of metals

1. Froth Floatation Process
2. Leaching: Chemical Method
3. Conversion of ore into oxide – Calcination and Roasting
4. Electrolytic Refining
5. Vapour Phase Refining

S – Block Elements (Alkali and Alkaline Earth Metals)

1. Chemical Properties of Alkali Metals – 1
2. Chemical Properties of Alkali Metals – 2
3. Anomalous Behaviour of Lithium
4. Halides of Alkali Metals
5. Sodium Chloride and Sodium Hydroxide

d – and f – BLOCK ELEMENTS

1. Screening Effect and Lanthanoid Contraction
2. Atomic Size/Radii
3. Ionisation Energy
4. Oxidation State
5. Magnetic Properties and Character

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FAQs On Chemistry Study Tips and Important Topics

Q. What are the important topics of Chemistry in JEE Main 2022?

The important topics of Chemistry in JEE Main 2022 are Purification and Characterization of Organic Compounds, Chemical Thermodynamics, Chemical Bonding, Classification of Elements and Periodicity in Properties, Hydrogen, Organic Compounds containing Halogens and Molecular Structure.

Q. How many questions will be asked from chemistry in JEE Main 2022?

There will be 30 questions asked from chemistry in JEE Main 2022.

Q. What is the marking scheme of JEE Main 2022?

The students will be awarded +4 marks for each right answer and 1 mark will be deducted for each wrong answer.

Q. Is Transition Elements and Coordination Chemistry is an important topic in Chemistry of JEE Main 2022?

Yes, Transition Elements and Coordination Chemistry is an important topic in the Chemistry of JEE Main 2022.

Q. Is Periodic table and Representative Element is an important topic in the Chemistry of JEE Main 2022?

Yes, the Periodic table and Representative Element is an important topics in the Chemistry of JEE Main 2022.

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