Chemistry

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Calcium carbonate is a metal carbonate. When an acid reacts with dilute hydrochloric acid and forms carbon dioxide gas & solution of calcium chloride. Reaction: CaCO3 + 2HCl(a) = CaCl2 + H2O(l) + CO2(g) Change in Free Energy: ΔG(20C) = -25.2kJ (negative, so the reaction runs) Change in Enthalpy: ΔH(20C) = +79.9kJ (positive, so the reaction is endothermic)

Moles, Molecules and Atom are always confusing but after watching this video you can solve any type of questions.

Mesomeric has higher stability compare to hyperconjugation and inductive effect. Mesomeric effect accounts for the resonance stabilization of the molecule due to delocalization of charge. For carbocation stabilization (+m) effect is required. Means electron donating should be more.

Fe[(H2O)6]2+ has higher unpaired electrons compare to [Cr(H2O) 6] 3+ so Fe[(H2O)6]2+ is higher Paramagnetism.

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Wiley's Solomons, Fryhle & Snyder Organic Chemistry for JEE (Main & Advanced), 3ed, This adapted version of one of the world's most well-known books on Organic Chemistry combines the Solomons, Fryhle and Synder approach to Organic Chemistry with engineering entrance examinations requirements. The book has been reorganized based on the challenges faced by the students preparing for engineering entrance in terms of practice problems and clarity of theories. The relevance to exams is enhanced by elaborating concepts related to the syllabus, removing irrelevant topics and addition of specific problems at the end of each chapter.  About the Author M.S. Chouhan is currently the Director and HOD (Organic Chemistry) of Vibrant Academy at Kota, Rajasthan. His earlier designations include Senior Faculty (Organic Chemistry) for Bansal Classes at Kota, Rajasthan. He had earned his graduate and postgraduate degrees in Chemistry from Mumbai University. Apart from these...

How to find Bond Order in 1 minute Bond Order is the number of bond between a pair of atoms. Example N2 has three bond order because between N there are three bond. But if you are not able to draw the structure then calculate no of electrons of the compound. 

A Textbook of Inorganic Chemistry for Competitions for JEE (Main & Advanced) & All Other Engineering Entrance Examinations (1st Year Programme) (2018-2019) Paperback – 2018

Concise Inorganic Chemistry: Fifth Edition by J.D. Lee Paperback – Feb 2008 by J.D. Lee (Author) Concise Inorganic Chemistry Concise Inorganic Chemistry is ideal for all those students who are looking to study Inorganic chemistry in much more detail and understand the basics of each and every concept thoroughly. It is not just a collection of theoretical text; rather information given in the book is backed by proper reasoning or experiments. Full effort has been made to keep the language as simple as possible, so that it can be of use to all. This book is designed in such a way that it caters to all the questions that a student may have from inorganic chemistry. The book is divided into six parts so that the readers find it easy to locate their answers. Special attention has been given to the different blocks of the periodic table, so there are parts such as s-block, p-block and other bocks as well, hydrogen and other topics. It is continuously updated keeping in mind the...

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Textbook of Physical Chemistry for JEE Main and Advanced Paperback – 2018 by R. K. Gupta (Author) A textbook for chemistry is a series of 3 proven best sellers, devised to deliver maximum information in an efficient and logical way. Each book poses to be a reliable and self-explanatory companion of aspirants in preparing for JEE main and advanced. 2018 Edition of R. K. Gupta’s textbook of physical chemistry is third in the series for students seeking admission in premier engineering institutes of India. Divided in 14 chapters the book includes sufficient illustrations to strengthen the understanding of essentials of physical chemistry. A natural flow of the topics has been maintained to facilitate the proper assimilation of the subject matter. Solved examples, in text exercises and end of the chapter exercises help students to master the concepts, processes and applications of the principles in solving different types of questions asked in JEE. About the Author An edito...

. Oxidation Number Trick

This is the simplest way to find out Hybridization of any compound. Watch this video For hydrocarbons just count total number of sigma bonds. There are many examples in below videos. Watch for hydrocarbons compounds