The invention of the common chemical element identification device known as the spectroscope was co-developed by whom? MCQ with Answer and Explanation

Question
The invention of the common chemical element identification device known as the spectroscope was co-developed by whom?
A. Robert Bunsen and Gustav Kirchhoff
B. Antoine Lavoisier
C. Dmitri Mendeleev
D. Humphry Davy
Answer: Option A
Solution (By JKSSB Mock Tests)
Bunsen and Kirchhoff integrated clean flame burners with light-splitting prisms to discover cesium and rubidium through emission lines.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered the process of nuclear fission in heavy elements, winning the Nobel Prize in Chemistry in 1944?
A. Niels Bohr
B. Lise Meitner
C. Enrico Fermi
D. Otto Hahn
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Correct Answer: Option D

Explanation:
German chemist Otto Hahn discovered nuclear fission of uranium in 1938 alongside Fritz Strassmann.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The invention of the common chemical element symbol notation system ($H, O, Ca$) used today was developed by whom?
A. John Dalton
B. Jöns Jacob Berzelius
C. Antoine Lavoisier
D. Dmitri Mendeleev
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Correct Answer: Option B

Explanation:
Berzelius introduced letter symbols based on Latin element names in 1813, replacing Dalton's cumbersome symbolic diagrams.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered that certain types of biological bacteria live completely without oxygen coordinates, establishing anaerobic pathways?
A. Robert Koch
B. Edward Jenner
C. Alexander Fleming
D. Louis Pasteur
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Correct Answer: Option D

Explanation:
Pasteur discovered butyric acid fermentation bacteria in 1861, proving that life can persist without atmospheric oxygen.
This question belongs to: Static General Knowledge Inventions and Discoveries
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