Question : Identify the correct statement concerning unsaturated hydrocarbons.

Option 1: Compounds of carbon having a single bond between their carbon atoms are called unsaturated compounds.

Option 2: Compounds of carbon having double bonds or triple bonds between their carbon atoms are called unsaturated compounds.

Option 3: Compounds of carbon having single bonds between their oxygen atoms are called unsaturated compounds.

Option 4: Compounds of carbon having double or triple bonds between their hydrogen atoms are called unsaturated compounds.

Question : In 1893, which Swiss chemist was the first to understand the molecular structures of inorganic substances – chemical compounds that do not contain carbon?

Option 1: Alfred Werner

Option 2: William Ramsay

Option 3: George de Hevesy

Option 4: John Dalton

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

Question : Who discovered Penicillin?

Option 1: Edward Jenner

Option 2: Niels Bohr

Option 3: Sir Alexander Fleming

Option 4: Heinrich Hertz

Question : Who invented the modern periodic table?

Option 1: Michael Faraday

Option 2: Dmitri Mendeleev

Option 3: Isaac Newton

Option 4: Niels Bohr