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

Question : Which French chemist was one of the first scientists to synthesise organic compounds such as formic acid, methane and acetylene from their elements?

Option 1: Jacob Berzelius

Option 2: Auguste Laurent

Option 3: Marcellin Berthelot

Option 4: Antoine Lavoisier

Question : In 1845, which German chemist published a method for the synthesis of acetic acid, a natural product containing two carbon atoms?

Option 1: Friedrich Wohler

Option 2: Marcellin Berthelot

Option 3: Joseph Gay-Lussac

Option 4: Hermann Kolbe

Question : Electrons in the highest energy level of an atom are called ________.

Option 1: Valence protons

Option 2: Orbital protons

Option 3: Valence electrons

Option 4: Orbital electrons

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?

Option 1: Antoine Lavoisier

Option 2: John Dalton

Option 3: Amedeo Avogadro

Option 4: Robert Boyle