inorganic compounds

Compounds like urea, sugars, oils, fats, dyes, proteins, vitamins which were isolated directly or indirectly from living organisms, such as animals and plants were called organic compounds. The branch of chemistry which deal with the study of these compounds was called organic chemistry. Compounds like common salt, marble , alums, vitriols which were isolated from … [Read more...] about Tetracovalency of Covalent Compounds