The periodic table of elements was first proposed in its widely recognized chronological form by whom? MCQ with Answer and Explanation

Question
The periodic table of elements was first proposed in its widely recognized chronological form by whom?
A. John Newlands
B. Henry Moseley
C. Dmitri Mendeleev
D. Antoine Lavoisier
Answer: Option C
Solution (By JKSSB Mock Tests)
Dmitri Mendeleev published the first widely recognized periodic table in 1869, arranging elements by atomic mass.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
The discovery of the charge-coupled device (CCD), which replaces film with digital sensor pixels in cameras, was made by whom?
A. Charles Kao
B. Theodore Maiman
C. Willard Boyle and George E. Smith
D. Fujio Masuoka
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Correct Answer: Option C

Explanation:
Boyle and Smith invented the CCD at Bell Labs in 1969, fundamentally altering digital imaging, which won them a 2009 Nobel Prize.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
The invention of the iconic acoustic phonograph recording flat disc format (Gramophone) was developed by whom?
A. Alexander Graham Bell
B. Thomas Edison
C. Emile Berliner
D. Nikola Tesla
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Correct Answer: Option C

Explanation:
Emile Berliner introduced flat zinc discs with lateral groove tracking in 1887, outperforming Edison's hollow wax storage cylinders.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
The invention of the safety razor with disposable stamped steel blades was introduced by whom?
A. Elisha Otis
B. King Camp Gillette
C. John Loud
D. Walter Hunt
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Correct Answer: Option B

Explanation:
King Camp Gillette patented the safety razor system with cheap, replaceable double-edged blades in 1904.
This question belongs to: Static General Knowledge Inventions and Discoveries
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