PREFACE

This text book entitled Pioneer Chemistry – Grade XII has been written basically to meet the needs of the students of Grade XII. It fully covers syllabus prescribed by the new curriculum of Curriculum Development Center (CDC).

An attempt has been made to keep the language simple and lucid to help the students and readers understand the subject matter clearly. An emphasis is given to keep clear cut presentation of the subject matter with simplified drawings. Itconsists of solution of both theoretical questions and numerical problems in each chapter. Some major organic conversions are also simplified after last chapter to remove the fear of students with organic chemistry. Besides, an attempt has been made to familiarize the students with Medical, Engineering along with other Competitive Entrance Examinations for objective questions and their answers. All numerical problems along with answers have been given in exercise. In this revised edition, self practice questions are included in all chapters to enhance the confidence level of students.

It is our great pleasure to put our teaching experiences for a long time in the related field to come up with this book Pioneer Chemistry – Grade XII. It throws light on the following salient features:

• Clear-cut concepts with examples
• Solved and unsolved numerical problems
• Different types of questions:
• Very Short Answer Questions
• Short Answer Questions
• Long Answer Questions
• Useful Objective Questions at the end of each chapter for competitive exams
• Useful organic conversions

We are greatly indebted to various personalities who gave invaluable support and encouragement directly or indirectly to make the book in this form.

We would like to express our sincere thanks and gratitude to Mr. Bijaya Rajthala for their pains in computer work and Mr. Naresh Bahadur Bist, the Managing Director of Dreamland Publication for the great efforts to get this book published.

Finally, we request faculty members, students and general readers to mail queries, comments and suggestions, open to all. Suggestions for the improvement of the book is most welcome and will be highly appreciated.

 Authors

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