M.O.T Recommended PYQs (STRICTLY NCERT Based) Chemical Bonding and Molecular Structure Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

1.	$ \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<$ $\sigma^* 2 s<\left(\pi 2 p_x=\pi 2 p_y\right)<$ $\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma 2 p_z<\sigma^* 2 p_z$
2.	$ \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<$ $\left(\pi 2 p_x=\pi 2 p_y\right)< $ $\sigma 2 p_z<\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z $
3.	$ \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z<$ $ \left(\pi 2 p_x=\pi 2 p_y\right)<$ $\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z $
4.	$ \sigma \text { 1s }<\sigma^* \text { 1s }$ $<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z< $ $ \sigma^* 2 p_z<\left(\pi 2 p_x=\pi 2 p_y\right)<$ $\left(\pi^* 2 p_x=\pi^* 2 p_y\right) $

Q2:

70% From NCERT NEET - 2023

Subtopic: M.O.T |

Other Reason

Add Note

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

Which one of the following statements is incorrect related to Molecular Orbital Theory?

1.	The $\pi^*$ antibonding molecular orbital has a node between the nuclei.
2.	In the formation of a bonding molecular orbital, the two electron waves of the bonding atoms reinforce each other.
3.	Molecular orbitals obtained from $2P_x$ and $2P_y$ orbitals are symmetrical around the bond axis.
4.	A $\pi-$bonding molecular orbital has larger electron density above and below the internuclear axis.

Q3:

From NCERT NEET - 2023

Subtopic: M.O.T |

Other Reason

Add Note

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

Identify the incorrect statement among the following options:

1.	$O^+_2$ ion is diamagnetic.
2.	The bond orders of $O_2^{+},O_2,O^-_2$ and $O_2^{2-}$ are 2.5, 2, 1.5, and 1, respectively.
3.	$C_2$ molecule has four electrons in its two degenerate $\pi $ molecular orbitals.
4.	$H^+_2 $ ion has one electron.

Q4:

78% From NCERT NEET - 2022

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

Which one of the following is the correct order of decreasing bond enthalpies for the given species?
1. $\mathrm {O^{2-}_2>O^-_2>O_2>N_2 }$
2. $\mathrm {N_2>O_2>O^{2-}_2>O^-_2 }$
3. $\mathrm {N_2>O_2>O^-_2>O^{2-}_2 }$
4. $\mathrm {O_2>N_2>O^-_2>O^{2-}_2 }$

Q5:

72% From NCERT NEET - 2022

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

A molecule that cannot exist is:

1.	${Li}_{2}$	2.	$C_{2}$
3.	$O_{2}$	4.	${He}_{2}$

Q6:

81% From NCERT NEET - 2020

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

A diatomic molecule, among the following species, that only has $π$ bonds according to the Molecular Orbital Theory (MOT) is:

1.	Be₂	2.	O₂
3.	N₂	4.	C₂

Q7:

60% From NCERT NEET - 2019

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

Which of the following is a paramagnetic compound?

1. $N_{2}$

2. $H_{2}$

3. ${Li}_{2}$

4. $O_{2}$

Q8:

84% From NCERT NEET - 2019

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

Consider the following species:
CN⁺, CN^-, NO and CN
The highest bond order associated with:

1.	NO	2.	CN^–
3.	CN⁺	4.	CN

Q9:

76% From NCERT NEET - 2018

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

The decreasing order of stability of $O_{2}, O_{2}^{-}, O_{2}^{+}$ $and$ $O_{2}^{2 -}$ is:

1. $O_{2}^{+} > O_{2} > O_{2}^{-} > O_{2}^{2 -}$

2. $O_{2}^{2 -} > O_{2}^{-} > O_{2} > O_{2}^{+}$

3. $O_{2} > O_{2}^{+} > O_{2}^{2 -} > O_{2}^{-}$

4. $O_{2}^{-} > O_{2}^{2 -} > O_{2}^{+} > O_{2}$

Q10:

75% From NCERT NEET - 2015

Subtopic: M.O.T |

Other Reason

Add Note

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

To view explanation, please take trial in the course below.

NEET 2025 - Target Batch

Please attempt this question first.

Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XI^th & XII^th Physics, Chemistry & Biology

1(current)
2
3

Q. No.

8527521718
support@neetprep.com
S-15, 2nd floor Uphar Cinema Market, above Red Chilli Restaurant, Green Park Extension, New Delhi, 110016

NEET Information

NEET 2024
NEET Syllabus
NEET Application Process
NEET Seat Intake
NEET Previous Year Papers
AIIMS Previous Year Papers

courses

NEET Course
NEET Course (English)
Bio Masterclass
NEET Test Series
All Courses

Company

About Us
Terms of Use
Privacy Policy
Refund Policy

Botany Questions

Living World
Biological Classification
Plant Kingdom
Morphology of Flowering Plants
Anatomy of Flowering Plants
Cell-unit of Life
Cell Cycle and Cell Division
Transport in Plants
Mineral Nutrition
Photosynthesis in Higher Plants
Respiration in Plants
Plant Growth and Development
Reproduction in Organisms
Sexual Reproduction in Flowering Plants
Principles of Inheritance and Variation
Molecular Basis of Inheritance
Strategies for Enhancement in Food Production
Microbes in Human Welfare
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues

Chemistry Questions

Some Basic Concepts of Chemistry
Structure of Atom
Classification of Elements and Periodicity in Properties
Chemical Bonding and Molecular Structure
States of Matter
Thermodynamics
Equilibrium
Redox Reactions
Hydrogen
The s-Block Elements
The p-Block Elements-XI
Organic Chemistry - Some Basic Principles and Techniques
Hydrocarbons
Environmental Chemistry
The Solid State
Solutions
Electrochemistry
Chemical Kinetics
Surface Chemistry
General Principles and Processes of Isolation of Elements
The p-Block Elements-XII
The d and f Block Elements
Coordination Compounds
Haloalkanes and Haloarenes
Alcohols, Phenols and Ethers
Aldehydes, Ketones and Carboxylic Acids
Amines
Biomolecules
Polymers
Chemistry in Everyday Life

Physics Questions

Units and Measurement
Mathematical Tools
Motion in A Straight Line
Motion in A Plane
Laws of Motion
Work, Energy and Power
Systems of Particles and Rotational Motion
Gravitation
Mechanical Properties of Solids
Mechanical Properties of Fluids
Thermal Properties of Matter
Thermodynamics
Kinetic Theory of Gases
Oscillations
Waves
Electric Charges and Fields
Electrostatic Potential and Capacitance
Current Electricity
Moving Charges and Magnetism
Magnetism and Matter
Electromagnetic Induction
Alternating Current
Electromagnetic Waves
Ray Optics and Optical Instruments
Wave Optics
Dual Nature of Radiation and Matter
Atoms
Nuclei
Semiconductor Electronics

Zoology Questions

Animal Kingdom
Structural Organisation in Animals
Biomolecules
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Reproductive Health
Evolution
Human Health and Disease
Biotechnology Principles and Processes
Biotechnology and its Application

1.	\( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\) \(\sigma^* 2 s<\left(\pi 2 p_x=\pi 2 p_y\right)<\) \(\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma 2 p_z<\sigma^* 2 p_z\)
2.	\( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\) \(\left(\pi 2 p_x=\pi 2 p_y\right)< \) \(\sigma 2 p_z<\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z \)
3.	\( \sigma \text { 1s }<\sigma^* \text { 1s }<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z<\) \( \left(\pi 2 p_x=\pi 2 p_y\right)<\) \(\left(\pi^* 2 p_x=\pi^* 2 p_y\right)<\sigma^* 2 p_z \)
4.	\( \sigma \text { 1s }<\sigma^* \text { 1s }\) \(<\sigma 2 s<\sigma^* 2 s<\sigma 2 p_z< \) \( \sigma^* 2 p_z<\left(\pi 2 p_x=\pi 2 p_y\right)<\) \(\left(\pi^* 2 p_x=\pi^* 2 p_y\right) \)

1.	The \(\pi^*\) antibonding molecular orbital has a node between the nuclei.
2.	In the formation of a bonding molecular orbital, the two electron waves of the bonding atoms reinforce each other.
3.	Molecular orbitals obtained from \(2P_x\) and \(2P_y\) orbitals are symmetrical around the bond axis.
4.	A \(\pi-\)bonding molecular orbital has larger electron density above and below the internuclear axis.

1.	\(O^+_2\) ion is diamagnetic.
2.	The bond orders of \(O_2^{+},O_2,O^-_2\) and \(O_2^{2-}\) are 2.5, 2, 1.5, and 1, respectively.
3.	\(C_2\) molecule has four electrons in its two degenerate \(\pi \) molecular orbitals.
4.	\(H^+_2 \) ion has one electron.