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Oswaal Books is an Indian educational publishing company headquartered in Agra, India. Established in 1984 by Naresh Jain, the company focuses on producing study materials for different educational boards, including CBSE , ISC , ICSE , and Karnataka , as well as materials for competitive exams such as JEE Main and Advanced , NEET , CAT , and ...
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
Another example is O(SiH 3) 2 with an Si–O–Si angle of 144.1°, which compares to the angles in Cl 2 O (110.9°), (CH 3) 2 O (111.7°), and N(CH 3) 3 (110.9°). [24] Gillespie and Robinson rationalize the Si–O–Si bond angle based on the observed ability of a ligand's lone pair to most greatly repel other electron pairs when the ligand ...
Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms. [1]
B 4 O 7 2-+ 2H + + 5H 2 O ⇌ 4B(OH) 3 The borax anion clearly accepts protons, making it a B-L base. Therefore B(OH) 3 must be a B-L acid. It reacts with B-L base, hydroxide, in the reverse reaction, to form borates. Let me quote from Shriver and Atkins, Inorganic Chemistry, 3rd. edn. p143. " [Lowry and Brønsted] suggested that any substance ...
Physical organic chemistry is the study of the relationship between structure and reactivity of organic molecules.More specifically, physical organic chemistry applies the experimental tools of physical chemistry to the study of the structure of organic molecules and provides a theoretical framework that interprets how structure influences both mechanisms and rates of organic reactions.
Computational chemistry is a branch of chemistry that uses computer simulations to assist in solving chemical problems. [1] It uses methods of theoretical chemistry incorporated into computer programs to calculate the structures and properties of molecules , groups of molecules, and solids. [ 2 ]
A different chemistry-based approach advocates replacing the term "heavy metal" with two groups of metals and a gray area. Class A metal ions prefer oxygen donors; class B ions prefer nitrogen or sulfur donors; and borderline or ambivalent ions show either class A or B characteristics, depending on the circumstances. [32]