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Xamidea sample papers science2024

Xamidea sample papers science2024

₹170

The first-of-its-kind sample paper booklet, i.e., one incorporating not only the practice papers but also the basic concepts for each chapter, is here. The practice papers in this booklet are designed per the specimen paper released by the CBSE board to give its readers an edge over the others in preparing for the CBSE examinations to be held in 2023. Some salient features of this book are as follows: 1. This sample paper booklet begins with basic concepts about each chapter, providing a snapshot of the entire chapter. It hence facilitates the purpose of last-minute revisionary notes needed by the students. 2. To help students practice and evaluate their understanding, detailed solutions of the CBSE-released sample paper have been incorporated in this booklet and a total of 15 sample papers. Out of these 15 sample papers, five papers include detailed step-by-step solutions, and the remaining ten papers are for practice by the students (answers for objective questions are included). 3. A blueprint based on the specimen paper released by the CBSE Board has also been included in this booklet to enable the students to gauge the unit-wise weightage and the marking scheme of the paper. 4. Effort has been made to model each practice paper based on the CBSE released sample paper hence all typology of questions to be tested in the annual examination 2023 (both objective and descriptive type questions) have been included. 5. Special emphasis has been laid to include the new typology of questions in each paper, i.e., matching-type MCQ, reason and assertion-based, statement-based, case-based, and miscellaneous questions. 6. This book is a one-stop destination for all the subject matter required for the final revision to ace the annual social science exam. Your guide to annual exams 2023 is now “Simplified”!

2 years ago
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Second edition Industrial wastewater treatment, A.D. Patwardhan

Second edition Industrial wastewater treatment, A.D. Patwardhan

₹499 ₹525
5% off

Industries use a large number of substances in their manufacturing processes and also generate solid residues, liquid effluents and gaseous emissions as wastes. These may be organic, inorganic, inert or toxic compounds but are hazardous in nature and thus need to be treated and disposed off suitably in order to maintain ecological balance of the environment. Also, wherever feasible, recovery of useful by-products, recycling of water and reuse of wastewater (with or without treatment) save resources and reduce production cost. In view of the above, the book has been written, and now updated in the second edition to discuss sources, characteristics and treatment of wastewater produced in industries such as textiles, dairy, tanneries, pulp and paper, fertilizer, pesticide, organic and inorganic chemicals, engineering and fermentation. Many flow diagrams have been included to illustrate industrial processes and to indicate the sources of wastewater. After describing treatment for individual factories, the author discusses the more advanced and economical common effluent plants. The text uses simple and straightforward language and makes the presentation attractive. This book should prove extremely useful to undergraduate students of civil and chemical engineering and postgraduate students of environmental science and engineering. Industrial design consultants will also find the book very handy. To the Greens, it may offer some of the solutions to their concerns. NEW TO THE SECOND EDITION • Includes the concept of Zero Liquid Discharge (ZLD) in Chapter 1 and provides further information in Appendix A. • Incorporates brief information about plasma gasification technique in Appendix B and advanced oxidation technique in Chapter 3. • Includes ecological aspects of pollution control and a reference on benthal load in Chapter 4. • Provides information on jute retting in Chapter 6. • Incorporates topics such as photocatalytic degradation of phenols from coke oven wastes, HCl recovery from pickling operations and e-waste han

2 years ago
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