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B.Ed. Science Education CHEMISTRY-IV UNIT 1-9 Course Code: 6459 Science Education Department Faculty of Education ALLAMA IQBAL OPEN UNIVERSITY ISLAMABAD i (All rights reserved with the publisher) 1st Printing ..................................................................................................... 2020 Number of Copies ................................................................................................ 1000 Course Coordinator ................................................................................ Dr. Aftab Ahmed Printer .............................................Allama Iqbal Open University, Islamabad Publisher .............................................Allama Iqbal Open University, Islamabad ii COURSE TEAM Dean Prof. Dr. Nasir Mehmood Chairman Prof. Dr. Nasir Mahmood Course Development Coordinator Dr. Aftab Ahmed Writers: 1. Dr. Aftab Ahmed Lecturer, Department of Science Education, AIOU. 2. Ms. Raheela Department of Chemistry, University of Wah, Wah Cantt. 3. Ms. Fareeha Department of Chemistry, University of Wah, Wah Cantt. 4. Mr. Zia ul Haq Zia Lecturer, Federal College of Education, Islamabad. 5. Syeda Koukab Lecturer, Federal College of Education, Islamabad. 6. Ms. Sadia Khatoon M.Phil. Scholar, Department of Science Education, AIOU. Reviewers: 1. Dr. Muhammad Zaigham Qadeer Associate Professor, Department of Chemistry, AIOU 2. Dr. Aftab Ahmed Lecturer, Department of Science Education, AIOU. 3. Mr. Arshad Mehmood Qamar Lecturer, Department of Science Education, AIOU. 4. Mr. Zia ul Haq Zia Lecturer, Federal College of Education, Islamabad. iii FOREWORD This course has been planned for fulfilling the content capability of future teachers who will be enrolled in B. Ed 4 years or B. Ed 2.5 years in Allama Iqbal Open University. This book may be beneficial for meeting the needs of the advance content for students and teachers. Scientific knowledge is expanding at a high speed. This is the age of scientific revolution and conceptions. which need skillful technologies. Allama Iqbal Open University and Science Education Department has accepted to maintain the excellence and adequacy. This book is one of those series of books which will enable the teachers to cope with changing needs of the society and students. This book is not written by a single author but a group of authors having vast experience in the field of Chemistry. The course development team was committed to make it possible in this shape. Now it is a complete book written according to the approved content and format of AIOU. Students of this level from any university can also get assistance from this manuscript. The focus of this book is to provide the students with best knowledge, skills and content in the subject of Chemistry. With the help of this book science students can explore the natural world, can understand the dynamics of Chemistry and discover new dimensions in the field. Keeping in view the qualitative aspect of education and an increasing demand of science teachers, stress is rested upon science content as well as strengthening their professional skills and knowledge. The elements of motivation and love are also considered. We welcome suggestions and comments for improvements from the readers, teachers and public at large for the improvement of this course. Prof. Dr. Nasir Mahmood Chairman Science Education Department iv PREFACE Nevertheless, there is lot of books accessible in market, but there is no book which fulfills the requirements of University approved outlines. Some cover one area of content while other covers another area. In this way there would be a lot of financial burden and dispersed focus.Further AIOU has its own requirement either to provide compiled material or textbook. This book is one of those series for coverage of content area requirement for B. Ed 4 Year and B. Ed 2.5 years in the field of Chemistry. This book is written as per prescribed procedure of book development. After approval of content from all statuary bodies, approval for starting development of this book was sought. Great stress has been laid in making the course to facilitate prospectus, in service and pre-service teachers for content knowledge regarding Chemistry. The course is equipped with illustrations for better understanding of the reader. Each unit is equipped with necessary illustrations, activities and self-assessment exercises. This is a quick effort and may have some errors and omissions for which we shall welcome suggestions for improvement in the next edition. AIOU hopes that this book will prove finest for the content knowledge regarding Chemistry at this level. Dr. Aftab Ahmed Course Development Coordinator v ACKNOWLEDGEMENTS Allama Iqbal Open University and the Course development coordinator along with course development team are grateful to the writers and publishers of Chemistry books for adopting their books and materials, internet for providing useful information regarding Chemistry, and reference materials for the development of the course of Chemistry -IV for B.Ed. Science Education. All are specially acknowledged whose information and material has been quoted in the course that Allama Iqbal Open University is a non- commercial educational University in Pakistan which is providing educational facilities to under-privileged remote rural areas through distance and non-formal mode. It is a matter of pleasure for Department of Science Education and AIOU to acknowledge all those whose efforts and hard work make it possible to frame content of this book. Committee of courses tried her best to make necessary changes and then approved the content of this course. Highly acknowledged members of CoC Prof. Dr. Rizwan Akram Rana, Dr. Muhammad Idrees, Dr. Hafiz Athar Khan, Dr. Fazal Ur Rahman, Dr. Muhammad Zaigham Qadeer, Dr. Muhammad Tanveer Afzal, Dr. Aftab Ahmed, Ms. Saima Kashif and Mr. Arshad Mehmood Qamar. My special thanks to Dr. Aftab Ahmed, Course Development Coordinator, who got the approval of Course Team. I acknowledge the writers and reviewers for a speedy write-up and review of the units efficiently. I also acknowledge the team of APCP, editor, lay out designer, composer and producer for giving their input to make this book more beautiful. Our PPU team is very cooperative and helpful for publishing the book. Finally, I acknowledge all those who in one way or the other put their efforts for completion of this task. Prof. Dr. Nasir Mehmood Chairman/ Dean Faculty of Education vi OBJECTIVES OF THE COURSE After completing this course, you will be able to: 1. Explain the quantum mechanics. 2. Discuss the chemical equilibrium. 3. Discuss the essentials of chemical analysis and evaluate analytical data. 4. Elaborate spectroscopy. 5. Explain carboxylic acids and their various derivatives. 6. Describe the carbohydrates. 7. Discuss synthetic polymers 8. Introduce and discuss Ceramics, glasses, inorganic polymers, thin glass, and semi- conductors 9. Explain environmental pollutants and their effects on environment vii CONTENTS Unit 1: Quantum Mechanics and Atomic Structure .......................................................... 1 Unit 2: Chemical Equilibrium ....................................................................................... 35 Unit 3: Evaluation of analytical data and essentials of chemical analysis ....................... 54 Unit 4: Spectroscopy ..................................................................................................... 84 Unit 5: Chemistry of carboxylic acid and their derivatives ........................................... 115 Unit 6: Carbohydrates ................................................................................................. 144 Unit 7: Synthetic Polymers ......................................................................................... 161 Unit 8: Introduction to modern material....................................................................... 188 Unit 9: Environmental Chemistry ................................................................................ 214 viii UNIT-1 QUANTUM MECHANICS AND ATOMIC STRUCTURE Written By: Muhammad Zia –Ul-Haq Zia Reviewed By: Dr. Muhammad Zaigham Qadeer 1 CONTENTS Introduction ........................................................................................................... 3 Objectives ........................................................................................................... 3 1.1 Elementary Treatment of Compton effect and photoelectric effect.......................... 4 1.2 Brief discussion of Bohr’s Atomic model and its defects. ....................................... 7 1.3 Summer field‘s modification of Azimuthal Quantum Number. ............................. 10 1.4 Dual nature of matter and its verification. ............................................................ 13 1.5 Details of Heisenberg’s uncertainty principle. ...................................................... 16 1.6 Postulates of quantum mechanics ......................................................................... 17 1.7 Derivation of time independent Schrodinger’s wave equation .............................. 18 1.8 Energy equation for free motions of particles in one dimensional box. ................. 21 1.9 Eigen values and Eigen Functions. ....................................................................... 25 1.10 Quantum Numbers............................................................................................... 27 2 INTRODUCTION By the late 19th century, physicists thought