Who discovered that the chemical element Magnesium is isolated as a distinct metal element via mercury amalgamation? MCQ with Answer and Explanation
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Question #1
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Who discovered that atomic elements possess unique magnetic configuration properties that line split inside specialized oven beam devices?
Correct Answer: Option B
Explanation:
The Stern-Gerlach experiment in 1922 physically demonstrated spatial quantization and electron spin attributes.
The Stern-Gerlach experiment in 1922 physically demonstrated spatial quantization and electron spin attributes.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The invention of the common synthetic plastic material known as Polyethylene (LDPE) was an accidental discovery by which chemical company?
Correct Answer: Option D
Explanation:
Eric Fawcett and Reginald Gibson accidentally produced white waxy polyethylene solid residue while testing high-pressure ethylene reactions at ICI in 1933.
Eric Fawcett and Reginald Gibson accidentally produced white waxy polyethylene solid residue while testing high-pressure ethylene reactions at ICI in 1933.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered the positron (the antiparticle of the electron) in 1932?
Correct Answer: Option D
Explanation:
Carl David Anderson discovered the positron using a cloud chamber to analyze cosmic rays, confirming Paul Dirac's theoretical prediction.
Carl David Anderson discovered the positron using a cloud chamber to analyze cosmic rays, confirming Paul Dirac's theoretical prediction.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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