Who discovered that the chemical element Titanium is isolated from dark mineral iron sand matrices? MCQ with Answer and Explanation
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Question #1
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Who invented the first functional integrated circuit (microchip) in 1958?
Correct Answer: Option B
Explanation:
Jack Kilby of Texas Instruments constructed the first working monolithic integrated circuit on a germanium chip, winning a Nobel Prize.
Jack Kilby of Texas Instruments constructed the first working monolithic integrated circuit on a germanium chip, winning a Nobel Prize.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The invention of the common chemical element symbol notation system ($H, O, Ca$) used today was developed by whom?
Correct Answer: Option A
Explanation:
Berzelius introduced letter symbols based on Latin element names in 1813, replacing Dalton's cumbersome symbolic diagrams.
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
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Who discovered that certain types of mold produce enzymes that slice viral genetic strains, known as CRISPR-Cas9 genome editing?
Correct Answer: Option B
Explanation:
Charpentier and Doudna adapted the bacterial immune mechanism into an exceptionally precise genetic engineering tool, winning the 2020 Nobel Prize.
Charpentier and Doudna adapted the bacterial immune mechanism into an exceptionally precise genetic engineering tool, winning the 2020 Nobel Prize.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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