1. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

2. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

3. Who invented c language

Answer:

Dennis Ritchie

4. Who invented Stainless Steel ?

Answer: Harry Brearley of Britain in 1913.

5. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

6. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

7. Who invented CT scan ?

Answer: Hounsfield by Britain in 1973.