Who discovered Ozone?
- A. Dmitri Mendeleev
- B. Christian Schonbein
- C. Richard Gatling
- D. Joseph Priestley
Correct Answer: B. Christian Schonbein (1839)
Similar Posts
Who discovered Hydrogen?
- A. Theodore Maiman
- B. Henry Cavendish
- C. George Stephenson
- D. Thomas Edison
Correct Answer: B. Henry Cavendish (1766)
What is the length of the shortest river in the world ‘Roe River’?
- A. 61 meters
- B. 65 meters
- C. 69 meters
- D. 71 meters
Correct Answer: A. 61 meters
Who discovered Vitamin B?
- A. Christiaan Eijkman
- B. Katherine Scott Bishop
- C. Cornelis Drebbel
- D. Albert Szent-Gyorgi
Correct Answer: A. Christiaan Eijkman (1897)
When was Majlis-e-Khadim-e-Kabba founded in Sub-Continent?
- A. 1912
- B. 1913
- C. 1914
- D. 1915
Correct Answer: B. 1913
Which city is called City of Arabian Night?
- A. Islamabad
- B. Geneva
- C. London
- D. Baghdad
Correct Answer: D. Baghdad
The largest living bird is:
- A. Duck
- B. Dodo
- C. Ostrich
- D. Peacock
Correct Answer: C. Ostrich