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- Question
Who invented Vacuum Flask?
Options- A. Charles Babbage
- B. Alexander Fleming
- C. Gregory Pincus
- D. James Dewar
- Correct Answer
- James Dewar
- 1. Who discovered Potassium?
Options- A. Humphry Davy
- B. Alan Turing
- C. Bill Gates
- D. Tim Berners-Lee Discuss
- 2. Who invented the electric tram?
Options- A. James Cook
- B. William Harvey
- C. Fyodor Pirotsky
- D. Robert Boyles Discuss
- 3. Soda water was invented by
Options- A. Tivadar Puskas
- B. Joseph Priestley
- C. Petrache Poenaru
- D. James Leonard Plimpton Discuss
- 4. What was invented by J. B. Dunlop?
Options- A. Airplane
- B. Car
- C. Rubber Tyre
- D. Rubber Boot Discuss
- 5. Who discovered the Cholera causing germ?
Options- A. Filippo Pacini
- B. Robert Koch
- C. M. Laveran
- D. Felix Hoffman Discuss
- 6. Who invented the battery?
Options- A. John Wilkinson
- B. Alessandro Volta
- C. James Hargreaves
- D. Thomas Edison Discuss
- 7. The Solar System was discoverd by
Options- A. Galleleo
- B. Finsen
- C. Copernicus
- D. None of these Discuss
- 8. Telegrahic code was introduced by
Options- A. Lipman
- B. Macmillan
- C. Thomas Moore
- D. Cockrell Discuss
- 9. Lift was invented by
Options- A. Otis
- B. Domagk
- C. Lee De Forest
- D. None of these Discuss
- 10. Who Invented The World Wide Web ?
Options- A. Sir Timothy John
- B. Earle Dickson
- C. James Rineose
- D. Laszlo Jozsef Biro Discuss
Inventions problems
Search Results
Correct Answer: Humphry Davy
Correct Answer: Fyodor Pirotsky
Correct Answer: Joseph Priestley
Correct Answer: Car
Correct Answer: Filippo Pacini
Correct Answer: Alessandro Volta
Correct Answer: Copernicus
Correct Answer: Thomas Moore
Correct Answer: Otis
Correct Answer: Sir Timothy John
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