Tautomerism

Tautomerism is two isomer where each of the isomer forms from the other isomer by shifting the electrons and ions and they stays in an equlibrium. There found two types of tautomerism. Keto forms and Enol forms. These two forms of isomer is interconvertible. The shifting of electron and hydrogen happend in this case. The basic difference of Tautomerism from the resonance structure is that, Resonance structure there have no existance of unique different molecule. It is only involved in electrons movement from one position to another position. But in tautomerism electron shifts from one position to another position to forms different molecule. Not only that in tautomerism the ions also shifts. The examples of tautomerism are the two isomeric form of Acetone. Here two forms are found. These are Keto form and Enol form. In keto form there found a ketone functional group but in Enol form there found an aldehyde functional group.