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Prafulla Chandra Ray Ancestral House & Birthplace at Khulna. Prafulla Chandra Ray was born in the village of Raruli-Katipara, then in Jessore District (now Dighalia, Khulna), in the eastern region of the Bengal Presidency of British India (now Bangladesh) to a Bengali Hindu family.
In organic chemistry, a functional group is a substituent or moiety in a molecule that causes the molecule's characteristic chemical reactions.The same functional group will undergo the same or similar chemical reactions regardless of the rest of the molecule's composition.
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.
The Indian Chemical Society is a scientific society dedicated in the field of chemistry from India. [ 1 ] [ 2 ] It was established in 1924 with Prafulla Chandra Ray as its founding president. [ 3 ] The same year the society started to publish its "Quarterly Journal of Indian Chemical Society" (1924– 1927) which is currently known as Journal ...
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...
The following outline acts as an overview of and topical guide to chemistry: . Chemistry is the science of atomic matter (matter that is composed of chemical elements), especially its chemical reactions, but also including its properties, structure, composition, behavior, and changes as they relate to the chemical reactions.
The National Standard Examination in Chemistry or NSEC is an examination in chemistry for higher secondary school students in India, usually conducted in the end of November. [1] The examination is organized by the Indian Association of Chemistry Teachers. Over 30,000 students, mainly from Standard 12, sit for this examination.
The theory part of the INChO examination is held in end-January/beginning of February of every year. It is conducted by the Indian Association of Chemistry Teachers. School students (usually of standards 11 and 12) first need to qualify the National Standard Examination in Chemistry (NSEC) held in November of the preceding year. Among the ...