Question : In 1931, who recognised that an aromatic compound must have an odd number of pairs of electrons, which can mathematically be written as 4n+2 (n = 0,1,2,3 etc.)?
Option 1: Antoine Lavoisier
Option 2: Erich Hückel
Option 3: Auguste Laurent
Option 4: Jacob Berzelius
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Correct Answer: Erich Hückel
Solution : The correct option is Erich Hückel .
A theory to ascertain if an aromatic molecule would be present in a planar ring molecule was put forth by the German physicist and chemist Sir Erich Hückel in 1931. According to his criteria, an aromatic molecule is cyclic and planar and possesses 4n+2 π electrons.
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Question : Which German chemist and physicist proposed that an aromatic compound must have an odd number of pairs of electrons, Which can mathematically be written as 4n+2 (n=0,1,2,3, etc.) in 1931?
Question : Which French chemist was one of the first scientists to synthesise organic compounds such as formic acid, methane and acetylene from their elements?
Question : Electrons in the highest energy level of an atom are called ________.
Question : In which year did Antoine Lavoisier publish 'Methods of Chemical Nomenclature', which included the rules for naming chemical compounds that are still in use today?
Question : In the early 1800s, who discovered that each chemical element is made up of a unique type of atom and that atoms differ by their mass?
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