The chemical element Fluorine was first isolated after many hazardous attempts by which French chemist? MCQ with Answer and Explanation

Question
The chemical element Fluorine was first isolated after many hazardous attempts by which French chemist?
A. Joseph Louis Gay-Lussac
B. Henri Moissan
C. Antoine Lavoisier
D. Marie Curie
Answer: Option B
Solution (By JKSSB Mock Tests)
Henri Moissan successfully isolated the highly reactive element fluorine in 1886 using electrolysis, winning the 1906 Nobel Prize in Chemistry.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered that the element Uranium emits invisible energy streams, opening the radioactive field before Marie Curie?
A. Henri Becquerel
B. Ernest Rutherford
C. Wilhelm Röntgen
D. J.J. Thomson
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Correct Answer: Option A

Explanation:
Becquerel left uranium compounds in a dark desk drawer with unexposed photographic plates, discovering they fogged without light exposure.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The first modern steam locomotive, 'Rocket', was built by which engineer?
A. George Stephenson
B. James Watt
C. Richard Trevithick
D. Thomas Newcomen
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Correct Answer: Option A

Explanation:
George Stephenson and his son Robert built the 'Rocket' in 1829, setting the standard for future steam railways.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered the protozoan parasite causing Malaria in human red blood cells?
A. Ronald Ross
B. Louis Pasteur
C. Charles Alphonse Laveran
D. Robert Koch
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Correct Answer: Option C

Explanation:
Charles Alphonse Laveran discovered the malaria parasite in 1880, winning the Nobel Prize in 1907. Sir Ronald Ross later discovered that mosquitoes transmit it.
This question belongs to: Static General Knowledge Inventions and Discoveries
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