1. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

2. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

3. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

4. Who invented HIV ?

Answer:

5. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

6. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

7. Who invented Stethoscope ?

Answer: Laennec of French in 1819.