Chemical Bonding and Molecular Structure Weightage in JEE Mains 2025

Dewesh Nandan Prasad

Updated On: January 21, 2025 11:10 AM | JEE Main

Chemical Bonding and Molecular Structure Weightage in JEE Mains 2025 is 6% to 7%.  Check the Chemical Bonding chapter's important topics, previous year's questions the weightage and more in the article.


 
Chemical Bonding and Molecular Structure Weightage in JEE Mains 2025, Chemical Bonding and Molecular Structure Weightage, Chemical Bonding Weightage 2025

Chemical Bonding and Molecular Structure Weightage in JEE Mains 2025: Candidates who are preparing for the JEE Main 2025 exam must go through the chapter Chemical Bonding & Molecular Structure, as it is one of the easiest chapters. Chemical Bonding and Molecular Structure Weightage in JEE Mains 2025 is 6 to 7 per cent in the exam. Almost every year in the JEE Main exam, 2 to 3 questions about Chemical Bonding and Molecular Structure are asked. Check the complete details of the Chemical Bonding & Molecular Structure chapter weightage, topic-wise syllabus, and more.

The JEE Main 2025 exam is scheduled to be conducted from January 22 to 31, 2025 for Session 1, and Session 2 is scheduled for April 1 to 8, 2025. On the other hand, the NTA JEE Main 2025 city intimation slip will be released in the second week of January 2025.

Also Read: JEE Main Previous Year Question Paper

Expected Chemical Bonding and Molecular Structure Weightage in JEE Mains 2025

The chapter Chemical Bonding and Molecular Structure holds 6% to 7% marks. According to the previous year's trends of the JEE Main exam, the question papers had 8—to 10-mark questions on Chemical Bonding from the JEE Main Chemistry Syllabus 2025 . Check the chapter-wise weightage of chemistry in the table below:

Name of Chapters

No. of Questions

Expected Weightage

Chemical Bonding and Molecular Structure

2

7%

Redox Reactions

1

3%

Mole Concept

1

3%

Chemical Kinetics

1

3%

Solution & Colligative Properties

1

3%

Electrochemistry

1

3%

General Organic Chemistry

1

3%

Carboxylic Acids & their Derivatives

1

7%

Carbohydrates, amino acids, and Polymers

1

7%

Atomic Structure

2

6.6%

Stereochemistry

1

3%

Hydrocarbon

1

3%

Alkyl Halides

1

3%

Aromatic Compounds

1

7%

Solid-State And Surface Chemistry

2

7%

Chemical And Ionic Equilibrium

2

7%

Nuclear & Environmental Chemistry

2

7%

Transition Elements & Coordination Compounds

3

10%

Thermodynamics & the Gaseous State

2

7%

Periodic table, p-Block Elements

3

10%

Also Check: JEE Main Subject Wise Syllabus 2025




Chemical Bonding & Molecular Structure: Previously Asked Questions in JEE Main Exam

Candidates who are preparing for the JEE Main 2025 and revising the chapter, Chemical Bonding and Molecular Structure, must check the previously asked questions from the chapter in the JEE Mains exam. Check the questions below:

Q: The correct increasing order for bond angles among  BF3, PF3, and ClF3 is:

A) BF3 = PF3 < ClF3

B) BF3 < PF3 < ClF3

C) ClF3 < PF3 < BF3

D) PF3 < BF3 < ClF3 Apil 9, 2024

Q: In which one of the following pairs the central atoms exhibit sp2 hybridisation?

A) BF3 and NO2−

B) NH2− and BF3

C) NH2− and H2O

D) H2O and NO2 April 9, 2024

Q: The shape of the carbocation is:

A) tetrahedral

B) diagonal pyramidal

C) diagonal

D) trigonal planar April 8, 2024

Q: Match List I with List II

LIST I

(Compound/Species)

LIST II

(Shape/Geometry)

A.

SF4

I.

Tetrahedral

B.

BrF3

II.

Pyramidal

C.

BrO3−

III.

Seesaw

D.

NH4+

IV.

Bent T-Shape

Choose the correct answer from the options given below:

  1. A-III, B-II, C-IV, D-I
  2. A-III, B-IV, C-II, D-I
  3. A-II, B-IV, C-III, D-I
  4. A-II, B-III, C-I, D-IV April 6, 2024

Q: Match List I with List II.

LIST I

LIST II

A.

ICl

I.

T - shape

B.

ICl3

II.

Square pyramidal

C.

ClF5

III.

Pentagonal bipyramidal

D.

IF7

IV.

Linear

Choose the correct answer from the options given below:

A

(A)-(I), (B)-(IV), (C)-(III), (D)-(II)

B

(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

C

(A)-(I), (B)-(III), (C)-(II), (D)-(IV)

D

(A)-(IV), (B)-(III), (C)-(II), (D)-(I) April 6, 2024

Q: Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) labelled: NH3 and NF3 molecules have pyramidal shape with a lone pair of electrons on the nitrogen atom. The resultant dipole moment of NH3 is greater than that of NF3.

Reason (R): In NH3, the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the N−Hbonds. F is the most electronegative element.
In the light of the above statements, choose the correct answer from the options given below:

A) (A) is false but (R) is true

B) (A) is true but (R) is false

C) Both (A) and (R) are true but (R) is NOT the correct explanation of (A)

D) Both (A) and (R) are true and (R) is the correct explanation of (A) April 6, 2024

Q: The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals

A. have the same energy

B. have the minimum overlap

C. has the same symmetry about the molecular axis

D. have different symmetry about the molecular axis

Choose the most appropriate from the options given below:

  1. B, C, D only
  2. A, B, C only
  3. B and D only
  4. A and C only January 31, 2024

Q: Which of the following is least ionic?

A) CoCl2

B) KCl

C) BaCl2

D) AgCl January 31, 2024

Q: Statement I: SO2 and H2O both possess a V-shaped structure.

Statement II: The bond angle of SO2 is less than that of H2O.

In the light of the above statements, choose the most appropriate answer from the options given below:

A) Both Statement I and Statement II are incorrect

B) Both Statement I and Statement II are correct

C) Statement I is correct but Statement II is incorrect

D) Statement I is incorrect but Statement II is correct January 31, 2024

Important Topics of Chemical Bonding & Molecular Structure

Candidates appearing for the JEE Main 2025 must go through the important topics for Chemical Bonding & Molecular Structure to get a hold of the chapter and secure maximum marks in the exam:

  • Kossel-Lew's Approach to Chemical Bonding
  • Octet Rule
  • Covalent Bond
  • Formal Charge
  • Ionic Bond or Electrovalent
  • Enthalpy
  • Valence Bond Theory
  • Hybridisation

JEE Main Exam Pattern 2025

Candidates are advised to check the JEE Main exam pattern 2025 along with the Chemical Bonding and Molecular Structure weightage to understand the exam better. Check the JEE Main 2025 exam pattern below:

  • The exam will be conducted for three subjects: Physics, Chemistry and Mathematics
  • Each subject will be divided into two sections: Section A and Section B
  • Section A will comprise 20 MCQs (Multiple Choice Questions)
  • Section B will comprise 5 NVQs (Numerical Value Questions)
  • Each question will hold a total of +4 marks for correct answers and -1 mark for incorrect answers
  • The JEE Main exam will be conducted for a total of 300 marks and 3 hours (180 minutes)

JEE Main Chemistry Syllabus 2025

Candidates must check the JEE Main Chemistry syllabus to get the right preparation strategy along with the weightage of the topics. Check the JEE Main Chemistry syllabus 2025 below

Section

Syllabus

Physical Chemistry

  • Some Basic Concepts in Chemistry
  • Atomic Structure
  • Chemical Thermodynamics
  • Chemical Bonding and Molecular Structure
  • Solutions
  • Equilibrium
  • Redox Reaction and Electro-Chemistry
  • Chemical Kinetics

Inorganic Chemistry

  • Classification of Elements and Periodicity in Properties
  • p-Block Elements
  • d and f-Block Elements
  • Coordination Compounds

Organic Chemistry

  • Purification and Characterisation of Organic Compounds
  • Some Basic Principles of Organic Chemistry
  • Hydrocarbons
  • Organic Compounds Containing Halogens
  • Organic Compounds Containing Nitrogen
  • Biomolecules
  • Principles Related to Practical

Related Articles

We have provided the complete details of the Chemical Bonding & Molecular Structure Weightage, like the number of questions, previous year's questions, important topics, and more, in the article and hope that candidates benefit from the article. Stay tuned to CollegeDekho for the latest updates related to the JEE Main syllabus 2025 . All the best for your upcoming JEE Main 2025 exam.

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FAQs

Is the JEE Main 2025 exam fully MCQ based?

The JEE Main exam incorporates various question types, comprising multiple-choice questions (MCQs), numerical value-based questions, as well as drawing-based questions. With MCQs, candidates must select the correct answer from the given options.

Is JEE Mains score enough for getting admission into IIT?

No. The JEE Mains exam alone is not enough for securing admission into an IIT. JEE Advanced is the crucial examination required for IIT admissions, and candidates are required to qualify in the JEE Main exam to be eligible for the JEE Advanced exam.

Is 90% considered a good score in the JEE Mains 2025 entrance exam?

Yes, 90 is considered to be a good percentile in the JEE Main 2025 entrance exam. Candidates can secure admission into NITs, IITs or IISc Bangalore if they score a rank between 1,00,000 and 1,50,000 with a 90 percentile in the JEE Main exam.

 

Which is the hardest topic in the JEE Mains 2025 exam?

Mathematics is often considered to be the most challenging subject in the JEE Main exam, but its difficulty level varies from person to person. Some students may find other subjects more challenging based upon their strengths and weaknesses.

Is NCERT enough for the JEE Mains 2025 preparation?

NCERT books are very important to prepare for the JEE Main 2025 exam. The JEE Main exam follows the CBSE syllabus for 11th and 12th classes, so NCERT books are considered to be the most reliable and necessary study materials. NCERT books explain basic fundamental concepts in a simple and clear way.

 

Is it easy to score 99 percentile in the JEE Mains 2025 exam?

To score a 99+ percentile in the JEE Main 2025 exam, candidates require more than just knowing the JEE Main syllabus, as it required consistent practice, strategic revision, time management, and the ability to solve complex problems under pressure. However, with the appropriate resources, one can achieve these requirements.

 

Can I leave any section for the JEE Main 2025 exam?

All sections namely Mathematics, Physics, and Chemistry are mandatory in the JEE Main exam, with questions covering the entire JEE Main syllabus. To be eligible for admission, candidates must achieve the minimum qualifying marks in each subject and the overall aggregate.

 

Will the JEE Mains syllabus change in 2025?

Candidates can study from the NCERT textbooks of class 11 and 12 Physics, Chemistry and Mathematics to cover the JEE Mains syllabus. No changes have been made to the JEE Main Syllabus 2025. NTA removed several topics of Physics, Chemistry and Mathematics last year from the JEE Main syllabus.

 

Is 75% required for the JEE Main 2025 exam?

Candidates must keep in mind that there is no requirement of 75% marks in class 12 for appearing in the JEE Mains exam. The JEE Main eligibility criteria of minimum 75% marks in class 12 is required at the time of securing admission across NITs, IIITs and GFTIs. Candidates can apply and appear in the JEE Mains 2025 exam irrespective of their class 12 marks.

 

Is PYQ enough for the JEE Mains 2025 preparation?

Previous year question papers are an important source for the JEE Main preparations. However, relying solely upon PYQs is not enough to fully prepare for the JEE Mains exam. Candidates must also focus on covering the entire syllabus, developing strong conceptual understanding, practising time management, and attempting mock tests.

 

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JEE Main Previous Year Question Paper

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