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vohra organic chemistry sem 1 (2023)

vohra organic chemistry sem 1 (2023)

₹167.00

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Dive into the world of organic compounds with Organic Chemistry by Mehak Rohilla and Mamta Sharma, an essential textbook for BSc 1st Year Semester 1 students at Punjab University, Chandigarh. Published by Vohra Publishing House, this book offers a clear exploration of fundamental concepts like molecular structure, bonding, and reaction mechanisms, making complex topics accessible and engaging. With practical examples and illustrations, it enhances understanding and facilitates retention. Perfect for students seeking to excel in their studies, this resource equips you with the knowledge needed for exams and future courses.

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  • Q1
    What is the primary focus of the "Organic Chemistry" book?
    A1

    The book provides a comprehensive understanding of organic chemistry, covering fundamental concepts like molecular structure, bonding, and reaction mechanisms, making complex topics accessible and engaging for BSc 1st Year Semester 1 students at Punjab University, Chandigarh.

  • Q2
    Who are the authors of this book?
    A2

    The "Organic Chemistry" book is authored by Mehak Rohilla and Mamta Sharma, experienced educators who bring a wealth of knowledge and expertise to the subject.

  • Q3
    Is the book aligned with the National Education Policy (NEP)?
    A3

    Yes, the book is designed to align with the NEP, ensuring that its content is relevant and up-to-date with current educational standards.

  • Q4
    What are some of the key topics covered in Unit I of the book?
    A4

    Unit I covers structure and bonding, including hybridization, bond lengths and angles, localized and delocalized chemical bonds, and resonance.

  • Q5
    What is the significance of reactive intermediates in organic chemistry?
    A5

    Understanding intermediate species is pivotal in mastering reaction mechanisms, as it helps predict how and why reactions occur.

  • Q6
    How does the book approach geometrical and conformational isomerism?
    A6

    The book provides an in-depth exploration of these concepts, including their importance in drug design, materials science, and biological systems.

  • Q7
    What type of isomerism is discussed in Unit III of the book?
    A7

    Unit III covers optical isomerism, including elements of symmetry, molecular chirality, enantiomers, stereogenic center, optical activity, and properties of enantiomers.

  • Q8
    How does the book explain the concept of configuration?
    A8

    The book explains configuration using relative and absolute configuration, sequence rules, D & L and R & S systems of nomenclature.

  • Q9
    What are some of the key topics covered in Unit IV of the book?
    A9

    Unit IV covers geometric isomerism, conformational isomerism, including conformational analysis of ethane and n-butane, conformations of cyclohexane, axial and equatorial bonds.

  • Q10
    Can this book be used for self-study?
    A10

    Absolutely! With its structured content and engaging explanations, "Organic Chemistry" is suitable for both classroom learning and independent study.

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1.Structure and Bonding 

2.Reactive intermediates 

3.Geometrical and conformational isomerism
ORGANIC CHEMISTRY-A

 Time: 3 Hrs.
 Max. Marks: 22+3
 30 Hrs. (2 Hrs/week)
 3 Periods/week

OBJECTIVE OF THE COURSE
To teach the fundamental concepts of Chemistry and their applications. The syllabus pertaining to
B.Sc. (GENERAL) (Semester System) in the subject of Chemistry has been upgraded as per provision of the
UGC module and demand of the academic environment. The course contents have been revised from time to
time as per suggestions of the teachers of the Chemistry working in the Panjab University, Chandigarh and
affiliated colleges. The syllabus contents are duly arranged unit wise and contents are included in such a
manner so that due importance is given to requisite intellectual and laboratory skills.

UNIT-I
Structure and Bonding:
Hybridization, bond lengths and bond angles, bond energy, localized and delocalized chemical bond, Van der
Waals interactions, resonance, hyperconjugation, aromaticity, inductive and field effects, hydrogen bonding.
Mechanism of Organic Reactions:
Curved arrow notation, drawing electron movements with arrows, half-headed and double-headed arrows,
homolytic and heterolytic bond breaking.Types of reagents-electrophiles and nucleophiles.Types of organic
reactions.Energy considerations.
Reactive intermediates-Carbocations, carbanions, free radicals, carbenes, arynes and nitrenes (with examples).
Assigning formal charges on intermediates and other ionic species.
Methods of determination of reaction mechanism (product analysis, intermediates, isotope effects, kinetic and
stereochemical studies).

UNIT –II
Alkanes and Cycloalkanes:
Isomerism in alkanes, sources, methods of formation (with special reference to Wurtz reaction, Kolbe
reaction, Corey-House reaction and decarboxylation of carboxylic acids), physical properties and chemical
reactions of alkanes
Mechanism of free radical halogenation of alkanes: Orientation, reactivity and selectivity. Cycloalkanes –
nomenclature, methods of formation, chemical reactions, Baeyer’s strain theory and its limitation. Ring strain
in small rings (cyclopropane and cyclobutane), theory of strainless rings. The case of cyclopropane ring:
banana bonds

UNIT-III 
Stereochemistry of Organic Compounds I:
Concept of isomerism, Types of isomerism.
Optical isomerism – Elements of symmetry, molecular chirality, enantiomers, stereogenic center, optical
activity, properties of enantiomers, chiral and achiral molecules with two stereogenic centers, diastereomers,
threo and erythrodiastereomers, meso compounds, resolution of enantiomers, inversion, retention and
racemization.
Relative and absolute configuration, sequence rules, D & L and R & S systems of nomenclature.

UNIT-IV 
Stereochemistry of Organic Compounds II:
Geometric isomerism: Determination of configuration of geometric isomers. E & Z system of nomenclature,
geometric isomerism in oximes and alicyclic compounds.
Conformational isomerism – Conformational analysis of ethane and n-butane; conformations of cyclohexane,
axial and equatorial bonds, conformation of mono and disubstituted cyclohexane derivatives. Newman
projection and Sawhorse formulae, Fischer and flying wedge formulae.
Difference between configuration and conformation.

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