Wiley s Problems in Organic Chemistry ( With Solutions ) for IIT JEE Main and Advanced Dr. K Singh

518 Pages·2019·96.21 MB·English

by  Dr. K Singh

ISBN 81-265-5582-3
9 788126 555826

PROBLEMS IN
ORGANIC
CHEMISTRY

PROBLEMS IN
ORGANIC
CHEMISTRY
Dr. K. Singh
K. Singh Vision Classes, Patna
Problems in Organic Chemistry
Copyright © 2015 by Wiley India Pvt. Ltd., 4435-36/7, Ansari Road, Daryaganj, New Delhi-110002.
Cover Image: stuartbur/iStockphoto
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Edition: 2015
ISBN: 978-81-265-5582-6
ISBN: 978-81-265-8216-7 (ebk)
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PREFACE
Organic Chemistry is understood by reading the textbook, listening to lectures and memorizing name reactions with
reagents. But perhaps most importantly, it is learnt by doing, that is, solving problems. It is not uncommon for students
who have performed below expectation in JEE to explain that they honestly thought they understood the text and lectures.
The diffi culty, however, lies in applying, generalizing, and extending the specifi c reactions and mechanisms they have
“memorized” to the solution of a very broad array of related problems. In doing so, students will begin to “internalize”
Organic Chemistry to develop an intuitive feel for, and appreciation of, the underlying logic of the subject. Acquiring that
level of skill requires but goes far beyond rote learning. It is the ultimate process by which one learns to manipulate the
myriad of reactions and, in time, gains a predictive power that will facilitate solving new problems.
Mastering Organic Chemistry is challenging. It demands memorization, but then requires application of those facts to
solve real problems. It features a highly logical structural hierarchy and builds upon a cumulative learning process. The
requisite investment in time and effort, however, can lead to the development of a sense of self-confi dence in the subject,
an intellectually satisfying experience, indeed.
Many excellent textbooks are available to explain the theory of Organic Chemistry; all provide extensive exercises.
Better performing students, however, consistently ask for additional exercises. It is the purpose of this book, then, to
provide supplementary problems and their solutions that reinforce and extend those textbook exercises.
This book has reached its destination in fi ve years; three years used in collection of problems chapter-wise and two
years for correction/eliminating errors. I have designed this book in such a manner that it will be useful for JEE aspiring
students. If you go through previous years’ JEE problems, you will fi nd that objective type questions have subjective
nature, that is why it was decided to write an objective pattern book in a subjective way. The beauty of this book is in the
solutions, which are at par with international level treatment. Each and every question has detailed solution with reaction
sequence, bond cleavage and formation of products. The book has separate chapters for Substitution and Elimination
reaction and Carbonyl alpha-Substitution and Carbonyl Condensation reactions, because JEE has always been framing
problems from these chapters.
Arrangement is according to classical functional group organization, with each group typically divided into Reactions,
Conversions and Mechanisms. To emphasize the vertical integration of the subject, problems in later chapters heavily
draw upon and integrate reactions learned in earlier chapters.
It is desirable, but impossible, to write a problem book that is completely text-independent. Most problems will follow
a similar developmental sequence, progressing from alkane/alkene/alkyne to aromatic to aldehyde/ketone to carboxylic
acid to enol/enolate to amine chemistry. But within the earlier domains, placement of the basics, stereochemistry, S /E
N
mechanisms, and other functional groups varies considerably. The sequence is important because it establishes the
concepts and reactions that can be utilized in subsequent problems. It is the intent of this problem book to follow a
consensus sequence that complements a broad array of Organic Chemistry textbooks. Consequently, instructors utilizing
a specifi c textbook may on some occasion offer their students guidance on the corresponding problem book chapter and
select problems for practice.
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vi PREFACE
I acknowledge the blessings and support of my mother Smt. Tileshwari Devi, father Shri Triveni Singh, wife Mrs.
Sarika Singh and sons, Aayushman and Shauryaman.
I would like to thank Dr. Sarika Mehta Jain for her unconditional support to make this an error-free book. She spent
a lot of time on this book, and solved each and every problem to ensure authentic and error free solutions. I can say
without any hesitation that she is the mother of this book, without her support this book would have never reached to my
students, readers and teachers. I also sincerely thank all the members of Wiley India team and especially Paras Bansal,
Anjali Chadha and Seema Sajwan in bringing out this book in such a nice form. It is all made possible by the grace of
God Almighty. I devote this book to the feet of God.
At the end, constructive criticism and valuable suggestions from the readers are most welcome to make the book more
useful.
Dr. K. Singh
[email protected]
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ABOUT THE AUTHOR
Dr K. Singh has done his post-graduation in Chemistry with special
paper in Organic Chemistry and his PhD in Water Pollution from Veer
Kunwar Singh University, Ara, Bihar. He is an accomplished faculty in
Chemistry, imparting quality education to JEE aspirants across north
India. He has a vast teaching experience of more than 19 years and has
taught more than 60,000 students. He has churned out thousands of
successful students in JEE, many of whom attained top hundred ranks
and studied in institutes of their choice. Many of these students are
doing exceedingly well in the fi eld of research and in corporate sector.
He is one of the very few faculties from Bihar who had the privilege
of teaching at Kota in early days. He then went on to establish the fi rst
Coaching Institute at Patna, Bihar, which is based on Kota teaching
pattern. As a leading educationist of Patna, he very successfully stopped
the migration of the students from Bihar to Kota.
Dr K. Singh is a member of American Chemical Society and has
been conferred with many awards. Some of which are: “Bharat Gaurav
Award” by World Economic Progress Society; Rashtriya Siksha Ratna Award” by I.E.D.R.A. and “Bhojpuri Academy
Samman” by Govt. of Bihar. He has also participated in the “National Conference on Excellence in Higher Education”.
His name is counted among the most successful and respected faculty in the world of JEE coaching.
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