Question

Who among the following scientist firstly invented Heavy water (D₂O)?
1. Paul Erlich
2. Harold Urey
3. Jonas Salk
4. Alexander Fleming

Answer 1

Correct Answer - Option 2 : Harold Urey

Harold Urey firstly invented Heavy water (D2O).

Heavy water (D2O)	Oxide of Deuterium
Application	Moderator in an atomic reactor
Harold Urey	Nobel Prize in Chemistry in 1934- for the discovery of deuterium (D)