Chemical Bonding & Molecular Structure JEE Main PYQs PDF, 2020–2026

Chemical Bonding & Molecular Structure has 207 questions in JEE Main papers from 2020 to 2026, about 30 per year across all shifts. The free PDF has 203 of them, each with its answer. The most asked topic is VSEPR Theory (64 questions), followed by Molecular Orbital Theory (46) and Hybridisation (25).

Asked in JEE Main: 2072020–2026, all shifts
In this free PDF: 203with answers
Asked in 2026: 23Latest paper: 2026 Apr S2
Most asked topic: VSEPR Theory64 Qs · 31% of the chapter
Difficulty mix: 51% easy · 49% mediumof the questions in the PDF

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Source: official NTA JEE Main papers · Updated 17 Oct 2026

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3 of this chapter's questions came back in a later paper (2021–2026). See the most repeated.

How often it's asked in JEE Main

Chemical Bonding & Molecular Structure had about 1.6 questions per shift in recent JEE Main papers (2024–26). It's one of the most asked Chemistry chapters. Most asked topic: VSEPR Theory. About 23 questions in the 2026 papers.

It came up in almost every 2024–26 shift in our bank (about 54 shifts). Question types in 2020–2026: about 138 MCQs and about 69 numerical.

How many questions from Chemical Bonding & Molecular Structure in JEE Main, year by year

Year	Questions	Per shift	MCQ	Numerical
2026	23	1.2	21	2
2025	21	1.1	17	4
2024	49	2.5	27	22
2023	31	1.3	17	14
2022	32	1.4	19	13
2021	30	1.2	18	12
2020	21	1.3	19	2
2020–2026	207	1.4	138	69

Most asked Chemical Bonding & Molecular Structure topics, 2020–2026

Topic	Questions
VSEPR Theory	64
Molecular Orbital Theory	46
Hybridisation	25
Covalent Bond and Lewis Structures	24
Dipole Moment	20

Every topic, year by year, is in the topic-wise table further down.

Counted from PrepWiser's question bank of JEE Main papers, 2020–2026. Per shift = questions that year ÷ shifts in our bank. Updated 17 Oct 2026.

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Two free sheets, made from the past JEE Main questions on this chapter.

Revision notes13 pages, 28 ideas with the usual mistakes.Open the revision notes Formula sheet3 pages, all 27 formulas.Open the formula sheet

Chemical Bonding & Molecular Structure questions per year

Year	Asked	In PDF
2026	23	23
2025	21	21
2024	49	48
2023	31	29
2022	32	31
2021	30	30
2020	21	21

in the free PDF asked, not in the PDFThe PDF only has questions we can print in full with a checked answer, so it holds 203 of the 207 asked.

Topic-wise weightage by year

How many Chemical Bonding & Molecular Structure questions each topic had in every JEE Main year (all shifts), counting every question asked, including ones not in the PDF. Darker cells mean more questions.

Topic	Asked	Share	2026	2025	2024	2023	2022	2021	2020
VSEPR Theory	64	31%	12	6	10	11	10	10	5
Molecular Orbital Theory	46	22%	5	4	11	5	9	9	3
Hybridisation	25	12%	·	3	7	·	6	4	5
Covalent Bond and Lewis Structures	24	12%	3	4	4	6	2	2	3
Dipole Moment	20	10%	2	2	9	3	2	·	2
Hydrogen Bonding	18	9%	·	1	6	4	1	4	2
Ionic Bond	9	4%	·	1	2	2	2	1	1
Formal Charge	1	0%	1	·	·	·	·	·	·
All topics	207	100%	23	21	49	31	32	30	21

Swipe the table sideways for older years.

Newest questions (2026)

The 12 newest of the 23 JEE Main 2026 Chemical Bonding & Molecular Structure questions in the free PDF, latest shift first.

JEE Main 2026 · 8 Apr · Shift 2 · VSEPR Theory

Bromine trifluoride autoionizes to form ${\mathrm{BrF}}_{2}^{{\oplus}}$ and ${\mathrm{BrF}}_{4}^{{\ominus}}$ . The shapes of the cation and anion are respectively $\_\_\_\_$ and $\_\_\_\_$ .

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JEE Main 2026 · 6 Apr · Shift 2 · VSEPR Theory

Given below are two statements :

Statement I : ${\mathrm{F}}_{2}{\mathrm{O}}<{\mathrm{H}}_{2}{\mathrm{O}}<{\mathrm{Cl}}_{2}{\mathrm{O}}$ is the correct trend in terms of bond angle.

Statement II : ${\mathrm{SiF}}_{4},{\mathrm{SnF}}_{4}$ and ${\mathrm{PbF}}_{4}$ are ionic in nature.

In the light of the above statements, choose the correct answer from the options given below :
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JEE Main 2026 · 6 Apr · Shift 1 · Covalent Bond and Lewis Structures

The pairs among

${\mathrm{A}}=\left[{\mathrm{SO}}_{3}^{{2-}},{\mathrm{CO}}_{3}^{{2-}}\right],{\mathrm{B}}=\left[{\mathrm{O}}_{2}^{{2-}},{\mathrm{F}}_{2}\right],{\mathrm{C}}=\left[{\mathrm{CN}}^{{-}},{\mathrm{CO}}\right],{\mathrm{D}}=[{\mathrm{NH}}_{3},{\mathrm{H}}_{3}{\mathrm{O}}^{{+}}]$ and ${\mathrm{E}}=\left[{\mathrm{MnO}}_{4}^{{2-}},{\mathrm{CrO}}_{4}^{{2-}}\right]$ that do not have similar Lewis dot structure are

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JEE Main 2026 · 6 Apr · Shift 2 · VSEPR Theory

Given below are two statements :

Statement I : The number of compounds among ${\mathrm{SO}}_{2},{\mathrm{SO}}_{3},{\mathrm{SF}}_{4},{\mathrm{SF}}_{6}$ and ${\mathrm{H}}_{2}{\ \mathrm{S}}$ in which sulphur does not obey the Octet rule is 3 .

Statement II : Among $[{\mathrm{H}}_{2}{\mathrm{O}},{\mathrm{ClF}}_{3},{\mathrm{SF}}_{4}],[{\mathrm{NH}}_{3},{\mathrm{BrF}}_{5},{\mathrm{SF}}_{4}],[{\mathrm{BrF}}_{5},{\mathrm{ClF}}_{3},{\mathrm{XeF}}_{4}]$ and [ ${\mathrm{XeF}}_{4},{\mathrm{ClF}}_{3},{\mathrm{H}}_{2}{\mathrm{O}}$ ], the number of sets in which all the molecules have one lone pair of electrons on the central atom is 1 .

In the light of the above statements, choose the correct answer from the options given below :
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JEE Main 2026 · 5 Apr · Shift 1 · VSEPR Theory

Consider the following species:

${\mathrm{BrF}}_{5},{\mathrm{XeF}}_{5}^{{-}},{\mathrm{BF}}_{4}^{{-}},{\mathrm{ICl}}_{4}^{{-}},{\mathrm{XeF}}_{4},{\mathrm{SF}}_{4},{\mathrm{NH}}_{4}^{{+}},{\mathrm{ClF}}_{3},{\mathrm{XeF}}_{2},{\mathrm{ICl}}_{2}^{{-}}$

Number of species having ${\mathrm{sp}}^{3}{\ \mathrm{d}}$ hybridized central atom is $\_\_\_\_$ .
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JEE Main 2026 · 5 Apr · Shift 2 · Molecular Orbital Theory

The covalent radii of atoms $A$ and $B$ are $r_{A}$ and $r_{B}$ , respectively. The covalent bond length and total length of AB molecule are respectively

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JEE Main 2026 · 4 Apr · Shift 2 · Molecular Orbital Theory

Which of the following pictorial diagram most correctly represents the $\pi^{\ast}$ ( $\pi$ antibonding) molecular orbital between two atoms if the internuclear axis is taken to be in the $z$ -direction $({{}\xrightarrow{z\text{-axis}\;}})$ ?
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JEE Main 2026 · 4 Apr · Shift 1 · Covalent Bond and Lewis Structures

According to Lewis theory, the total number of $\sigma$ bond-pairs and lone pair of electrons around the central atom of ${\mathrm{XeO}}_{6}{}^{{4-}}$ ion is $\_\_\_\_$ .
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JEE Main 2026 · 2 Apr · Shift 2 · VSEPR Theory

SF ${}_{4}$ is isostructural with :
A. BrF ${}_{4}^{\ominus}$
B. CH ${}_{4}$
C. IF ${}_{4}^{{\oplus}}$
D. XeF ${}_{4}$
E. XeO ${}_{2}$ F ${}_{2}$
Choose the correct answer from the options given below :
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JEE Main 2026 · 2 Apr · Shift 1 · Molecular Orbital Theory

Given below are two statements :
Statement (I): The correct sequence of bond lengths in the following species is :
${{\mathrm{O}}{{\phantom{}}}_{{{2}}}{{\phantom{}}}^{{+}}}<{{\mathrm{O}}{{\phantom{}}}_{{{2}}}}<{{\mathrm{O}}{{\phantom{}}}_{{{2}}}{{\phantom{}}}^{{-}}}<{{\mathrm{O}}{{\phantom{}}}_{{{2}}}{{\phantom{}}}^{{2-}}}$
Statement (II): The correct sequence of number of unpaired electrons in the following species is :
${{\mathrm{O}}{{\phantom{}}}_{{{2}}}}>{{\mathrm{O}}{{\phantom{}}}_{{{2}}}{{\phantom{}}}^{{+}}}>{{\mathrm{O}}{{\phantom{}}}_{{{2}}}{{\phantom{}}}^{{-}}}>{{\mathrm{O}}{{\phantom{}}}_{{{2}}}{{\phantom{}}}^{{2-}}}$
In the light of the above statements, choose the correct answer from the options given below :
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JEE Main 2026 · 28 Jan · Shift 1 · VSEPR Theory

Given below are two statements :

Statement I : The number of species among ${\mathrm{BF}}_{4}^{{-}},{\mathrm{SiF}}_{4},{\mathrm{XeF}}_{4}$ and ${\mathrm{SF}}_{4}$ , that have unequal ${\mathrm{E}}-{\mathrm{F}}$ bond lengths is two. Here, E is the central atom.

Statement II : Among ${\mathrm{O}}_{2}^{{-}},{\mathrm{O}}_{2}^{{2-}},{\mathrm{F}}_{2}$ and ${\mathrm{O}}_{2}^{{+}},{\mathrm{O}}_{2}^{{-}}$ has the highest bond order.

In the light of the above statements, choose the correct answer from the options given below
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JEE Main 2026 · 28 Jan · Shift 2 · VSEPR Theory

Match List - I with List - II according to shape.

List – I	List – II
A. XeO₃ B. XeF₂ C. XeO₂F₂ D. XeOF₄	I. BrF₅ II. NH₃ III. [I₃]⁻ IV. SF₄

Choose the correct answer from the options given below :

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Sample questions from recent papers

JEE Main 2026 · 24 Jan · Shift 1 · Dipole Moment

Given below are statements about some molecules/ions.

Identify the CORRECT statements.

A. The dipole moment value of ${\mathrm{NF}}_{3}$ is higher than that of ${\mathrm{NH}}_{3}$ .

B. The dipole moment value of ${\mathrm{BeH}}_{2}$ is zero.

C. The bond order of ${\mathrm{O}}_{2}{}^{{2-}}$ and ${\mathrm{F}}_{2}$ is same.

D. The formal charge on the central oxygen atom of ozone is -1 .

E. In ${\mathrm{NO}}_{2}$ , all the three atoms satisfy the octet rule, hence it is very stable.

Choose the correct answer from the options given below:

(A)
B & C Only
(B)
B, C & D Only
(C)
A, C & D Only
(D)
A, B, C, D & E

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Answer: (A)

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JEE Main 2026 · 22 Jan · Shift 1 · Formal Charge

The formal charges on the atoms marked as (1) to (4) in the Lewis representation of ${\mathrm{HNO}}_{3}$ molecule respectively are

JEE Main PYQ figure

(A)
$0,0,-1,+1$
(B)
$0,-1,0,+1$
(C)
$0,+1,0,-1$
(D)
$+1,0,0,-1$

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Answer: (C)

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JEE Main 2026 · 21 Jan · Shift 2 · Covalent Bond and Lewis Structures

The correct increasing order of C–H(A), C–O(B), C=O(C) and C≡N(D) bonds in terms of covalent bond length is :

(A)
D < C < B < A
(B)
D < C < A < B
(C)
A < B < C < D
(D)
A < D < C < B

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Answer: (D)

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JEE Main 2025 · 7 Apr · Shift 2 · Hybridisation

In SO₂, NO₂^$-$ and N₃^$-$, the hybridizations at the central atom are respectively :

(A)
sp², sp² and sp²
(B)
sp, sp² and sp
(C)
sp², sp and sp
(D)
sp², sp² and sp

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Answer: (D)

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JEE Main 2025 · 29 Jan · Shift 1 · Ionic Bond

An element ‘E’ has the ionisation enthalpy value of 374 kJ mol⁻¹. ‘E’ reacts with elements A, B, C and D with electron gain enthalpy values of −328, −349, −325 and −295 kJ mol⁻¹, respectively. The correct order of the products EA, EB, EC and ED in terms of ionic character is :

(A)
EB > EA > EC > ED
(B)
EA > EB > EC > ED
(C)
ED > EC > EA > EB
(D)
ED > EC > EB > EA

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Answer: (A)

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JEE Main 2025 · 23 Jan · Shift 2 · Hydrogen Bonding

Given below are two statements :

Statement (I) : The boiling points of alcohols and phenols increase with increase in the number of C -atoms.

Statement (II) : The boiling points of alcohols and phenols are higher in comparison to other class of compounds such as ethers, haloalkanes.

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

(A)Statement I is false but Statement II is true
(B)Both Statement I and Statement II are true
(C)Statement I is true but Statement II is false
(D)Both Statement I and Statement II are false

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Answer: (B)

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Frequently asked

How many questions come from Chemical Bonding & Molecular Structure in JEE Main?

207 questions from 2020 to 2026, about 30 per year. In 2026 it had 23. The free PDF has 203 of them.

Which Chemical Bonding & Molecular Structure topics are most important for JEE Main?

By past papers: VSEPR Theory (31%), Molecular Orbital Theory (22%) and Hybridisation (12%) of all Chemical Bonding & Molecular Structure questions.

Is the Chemical Bonding & Molecular Structure PYQ PDF free?

Yes. The PDF and its answer key are free, and you can practise the questions online with no login, with step-by-step solutions where available.

Prefer to solve online? Practise Chemical Bonding & Molecular Structure online with step-by-step solutions where available, or work through JEE Main papers shift by shift.

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JEE Main PYQs by year: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020

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Answers follow NTA's final answer keys. Typing errors are possible, so check doubtful answers against the official key. Spotted a mistake? prepwiser.in/feedback · Terms: prepwiser.in/terms

Chemical Bonding & Molecular Structure JEE Main PYQs PDF, 2020–2026

How often it's asked in JEE Main

How many questions from Chemical Bonding & Molecular Structure in JEE Main, year by year

Most asked Chemical Bonding & Molecular Structure topics, 2020–2026

Revise Chemical Bonding & Molecular Structure before you practise

Send this chapter to your study group

Chemical Bonding & Molecular Structure questions per year

Topic-wise weightage by year

Newest questions (2026)

Sample questions from recent papers

Practise these online, free, no login

Frequently asked

How many questions come from Chemical Bonding & Molecular Structure in JEE Main?

Which Chemical Bonding & Molecular Structure topics are most important for JEE Main?

Is the Chemical Bonding & Molecular Structure PYQ PDF free?

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