JEE Main Chemical Bonding & Molecular Structure Practice Questions With Solutions

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JEE Main Chemical Bonding Molecular Structure Practice Questions with Solutions

Chemical Bonding Molecular Structure is an important part of physical chemistry. It is important for JEE Main aspirants to develop a strong grasp of organic chemistry as it is a challenging section. The JEE Main Chemical Bonding Molecular Structure Practice Questions with Solutions have a variety of questions from this topic for students to practice and strengthen their chemistry section for the JEE Main entrance test.

About 2 to 3 questions may appear from Chemical Bonding Molecular Structure on the JEE Main question paper. Usually, the question will be in the form of multiple choice questions and integer-type questions, testing the student’s proficiency in organic chemistry. The JEE Main exam is a highly competitive entrance exam for all engineering aspirants. Therefore, it is essential for candidates to attempt these practice tests at least once a week to develop knowledge of the topic and answer questions with precision.

Around 15 to 20 questions are available from this chapter in the JEE Main Chemical Bonding Molecular Structure practice questions with solutions, covering all the essential topics. The important topics of the Chemical Bonding Molecular Structure chapter, from which questions may appear, are Types of Chemical Bonds, VSEPR Theory & Molecular Shape, Lewis Structures and Formal Charge, Bond Polarity and Dipole Moment, Hybridisation, Molecular Orbital Theory & Bond Order, VSEPR Theory & Molecular Shape, Intermolecular Forces, Isomerism & Electron Distribution, Resonance & Exceptions. The practice tests, containing questions on all these topics along with their detailed solutions, will allow aspirants to understand the basic concepts well by going through the detailed explanations provided.

Attempting the JEE Main Chemical Bonding Molecular Structure Practice Questions with Solutions on a regular basis will improve the accuracy of the student and help them manage their time better during the main examination. Thorough practice will also allow them to understand their weak areas, work on them, and gain confidence in solving questions from this topic with ease in the JEE Main exam.

JEE Main Chemistry Chemical Bonding & Molecular Structure Practice Questions

Mathematics Physics

Question 1.

The correct increasing order for bond angles among ${BF}_{3}, {PF}_{3}$ and ${ClF}_{3}$ is :

{BF}_{3} = {PF}_{3} < {ClF}_{3}

{BF}_{3} < {PF}_{3} < {ClF}_{3}

{ClF}_{3} < {PF}_{3} < {BF}_{3}

{PF}_{3} < {BF}_{3} < {ClF}_{3}

Question 2.

In which one of the following pairs the central atoms exhibit ${sp}^{2}$ hybridization ?

{BF}_{3}

and

{NO}_{2}^{-}

{NH}_{2}^{-}

and

{BF}_{3}

{NH}_{2}^{-}

and

H_{2} O

H_{2} O

and

{NO}_{2}

Question 3.

The shape of carbocation is :

tetrahedral

diagonal pyramidal

diagonal

trigonal planar

Question 4.

When $ψ_{A}$ and $ψ_{B}$ are the wave functions of atomic orbitals, then $σ^{*}$ is represented by :

ψ_{A} + 2 ψ_{B}

ψ_{A} - ψ_{B}

ψ_{A} - 2 ψ_{B}

ψ_{A} + ψ_{B}

Question 5.

Match List I with List II

	LIST I (Molecule)		LIST II (Shape)
A.	${NH}_{3}$	I.	Square pyramid
B.	${BrF}_{5}$	II.	Tetrahedral
C.	${PCl}_{5}$	III.	Trigonal pyramidal
D.	${CH}_{4}$	IV.	Trigonal bipyramidal

Choose the correct answer from the options given below:

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

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

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

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

Question 6.

Match List I with List II

	LIST I (Compound/Species)		LIST II (Shape/Geometry)
A.	${SF}_{4}$	I.	Tetrahedral
B.	${BrF}_{3}$	II.	Pyramidal
C.	${BrO}_{3}^{-}$	III.	See saw
D.	${NH}_{4}^{+}$	IV.	Bent T-Shape

Choose the correct answer from the options given below:

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

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

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

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

Question 7.

Match List I with List II

	LIST I (Molecule/Species)		LIST II (Property/Shape)
A.	${SO}_{2} {Cl}_{2}$	I.	Paramagnetic
B.	$NO$	II.	Diamagnetic
C.	${NO}_{2}^{-}$	III.	Tetrahedral
D.	$I_{3}^{-}$	IV.	Linear

Choose the correct answer from the options given below:

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

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

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

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

Question 8.

Match List I with List II.

	LIST I		LIST II
A.	$ICl$	I.	T - shape
B.	${ICl}_{3}$	II.	Square pyramidal
C.	${ClF}_{5}$	III.	Pentagonal bipyramidal
D.	${IF}_{7}$	IV.	Linear

Choose the correct answer from the options given below :

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

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

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

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

Question 9.

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

Assertion (A) : ${NH}_{3}$ and ${NF}_{3}$ molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of ${NH}_{3}$ is greater than that of ${NF}_{3}$ .

Reason (R) : In ${NH}_{3}$ , the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the $N - H$ bonds. $F$ is the most electronegative element.

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

(A) is false but (R) is true

(A) is true but (R) is false

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

Both (A) and (R) are true and (R) is the correct explanation of (A)

Question 10.

Number of $σ$ and $π$ bonds present in ethylene molecule is respectively :

3 and 1

5 and 1

4 and 1

5 and 2

Question 1.

The correct statement/s about Hydrogen bonding is/are

A. Hydrogen bonding exists when H is covalently bonded to the highly electro negative atom.

B. Intermolecular H bonding is present in $o$ -nitro phenol

C. Intramolecular $H$ bonding is present in HF.

D. The magnitude of $H$ bonding depends on the physical state of the compound.

E. H-bonding has powerful effect on the structure and properties of compounds

Choose the correct answer from the options given below:

A, B, C only

A only

A, D, E only

A, B, D only

Question 2.

The number of species from the following that have pyramidal geometry around the central atom is _________

$S_{2} O_{3}^{2 -}, {SO}_{4}^{2 -}, {SO}_{3}^{2 -}, S_{2} O_{7}^{2 -}$

Question 3.

Number of molecules/ions from the following in which the central atom is involved in ${sp}^{3}$ hybridization is ________.

${NO}_{3}^{-}, {BCl}_{3}, {ClO}_{2}^{-}, {ClO}_{3}^{-}$

Question 4.

Which one of the following molecules has maximum dipole moment?

{CH}_{4}

{NF}_{3}

{NH}_{3}

{PF}_{5}

Question 5.

Given below are two statements :

Statement (I) : A

π

bonding MO has lower electron density above and below the inter-nuclear axis.

Statement (II) : The

π^{*}

antibonding MO has a node between the nuclei.

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

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Statement I is false but Statement II is true

Question 6.

Select the compound from the following that will show intramolecular hydrogen bonding.

JEE Main 2024 (Online) 1st February Evening Shift Chemistry - Chemical Bonding & Molecular Structure Question 48 English Option 1

H_{2} O

C_{2} H_{5} OH

{NH}_{3}

Question 7.

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

Assertion (A):

{PH}_{3}

has lower boiling point than

{NH}_{3}

.

Reason (R) : In liquid state

{NH}_{3}

molecules are associated through vander Waal's forces, but

{PH}_{3}

molecules are associated through hydrogen bonding.

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

Both (A) and (R) are correct and (R) is the correct explanation of (A)

(A) is not correct but (R) is correct

(A) is correct but (R) is not correct

Both

(A)

and

(R)

are correct but

(R)

is not the correct explanation of

(A)

Question 8.

Arrange the bonds in order of increasing ionic character in the molecules.

LiF

K_{2} O, N_{2}, {SO}_{2}

and

{ClF}_{3}

N_{2} < {SO}_{2} < {ClF}_{3} < K_{2} O < LiF

{ClF}_{3} < N_{2} < {SO}_{2} < K_{2} O < LiF

LiF < K_{2} O < {ClF}_{3} < {SO}_{2} < N_{2}

N_{2} < {ClF}_{3} < {SO}_{2} < K_{2} O < LiF

Question 9.

Which of the following is least ionic?

CoCl

_{2}

KCl

BaCl

_{2}

AgCl

Question 10.

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. have same symmetry about the molecular axis

D. have different symmetry about the molecular axis

Choose the most appropriate from the options given below:

B, C, D only

A, B, C only

B and D only

A and C only

JEE Main Chemical Bonding & Molecular Structure Practice Questions With Solutions

JEE Main Chemical Bonding Molecular Structure Practice Questions with Solutions

JEE Main Chemistry Chemical Bonding & Molecular Structure Practice Questions

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

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