1. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

2. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

3. Who invented Chloroform as anaesthetic ?

Answer: James Simpson of Britain in 1847.

4. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

5. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

6. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

7. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805