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upsc .gov .in. The Civil Services Examination ( CSE) is a standardized test in India conducted by the Union Public Service Commission for recruitment to higher civil services in the Government of India, such as the All India Services and Central Civil Services (Group A and a few Group B posts). [ 4]
The side chains are: an ethyl- at carbon 4, an ethyl- at carbon 8, and a butyl- at carbon 12. Note: the −O−CH 3 at carbon atom 15 is not a side chain, but it is a methoxy functional group. There are two ethyl- groups. They are combined to create, 4,8-diethyl. The side chains are grouped like this: 12-butyl-4,8-diethyl.
Carbon cycle. The carbon cycle is that part of the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth. Other major biogeochemical cycles include the nitrogen cycle and the water cycle. Carbon is the main component of biological compounds as well as a major component ...
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.
Jagadish Chandra Bose laid the foundations of experimental science in the Indian subcontinent. [ 128] He is considered one of the fathers of radio science. [ 129] Extent of the railway network in India in 1871; construction had begun in 1856. The Indian railways network in 1909.
The +4 oxidation state dominates titanium chemistry, [33] but compounds in the +3 oxidation state are also numerous. [34] Commonly, titanium adopts an octahedral coordination geometry in its complexes, [35] [36] but tetrahedral TiCl 4 is a notable exception. Because of its high oxidation state, titanium(IV) compounds exhibit a high degree of ...
Shanti Swarup Bhatnagar. Sir Shanti Swarup Bhatnagar OBE, FNI, FASc, [ 2] FRS, [ 1] FRIC, FInstP (21 February 1894 – 1 January 1955) was an Indian colloid chemist, academic and scientific administrator. The first director-general of the Council of Scientific and Industrial Research (CSIR), Bhatnagar is revered as the Father of Research ...
www .cbse .gov .in. The Central Board of Secondary Education ( CBSE) is a national level board of education in India for public and private schools, controlled and managed by the Government of India. Established in 1929 by a resolution of the government, the Board was an experiment towards inter-state integration and cooperation in the sphere ...