Silicones are organosilicon polymeric compounds containing repeated R2SiO units and (-Si-O-Si-) linkage.The name is given silicone because their empirical formula is analogous to that of ketones (R2CO). Silicones may have the cyclic structure also having 3, 4, 5 and 6 nos. of silicon atoms within the ring. Alcohol analogue of silicon is known as silanol.
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