The invention of the common chemical process for production of sodium carbonate (soda ash) from salt and limestone is named after whom? MCQ with Answer and Explanation

Question
The invention of the common chemical process for production of sodium carbonate (soda ash) from salt and limestone is named after whom?
A. Carl Bosch
B. Ernest Solvay
C. Fritz Haber
D. Nicolas Leblanc
Answer: Option D
Solution (By JKSSB Mock Tests)
Nicolas Leblanc patented the early synthetic soda ash manufacturing method in 1791, satisfying early industrial glass and soap production needs.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
The first accurate measurement of the speed of light using astronomical observations of Jupiter's moons was performed by whom?
A. Léon Foucault
B. Albert Michelson
C. Ole Rømer
D. Armand Fizeau
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Correct Answer: Option C

Explanation:
Danish astronomer Ole Rømer made the first quantitative measurement of the speed of light in 1676.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who discovered that light travels slower in dense mediums like water or glass than in a vacuum, confirming the wave theory?
A. Isaac Newton
B. Léon Foucault
C. Ole Rømer
D. Albert Michelson
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Correct Answer: Option B

Explanation:
Léon Foucault measured the speed of light in water using a rotating mirror device, refuting Newton's corpuscular particle model.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?
A. Felix Bloch
B. Peter Mansfield
C. Paul Lauterbur
D. Isidor Isaac Rabi
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Correct Answer: Option D

Explanation:
Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.
This question belongs to: Static General Knowledge Inventions and Discoveries
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