1. Who invented Bleaching Powder ?

Answer: Tennant of Britain in 1798

2. Who invented paper ?

Answer:

Cai Lun

3. Who invented Blood Transfusion ?

Answer: Jean-Baptiste Denys of France in 1625.

4. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

5. Who invented Aeroplane

Answer: Orville & Wilbur Wright in 1903

6. Who invented Radar ?

Answer:

Sir Robert Watson-Watt

7. Who invented google ?

Answer:

Larry Page