Who invented the first functional polymer-based synthetic rubber, Neoprene? MCQ with Answer and Explanation
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Question #1
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Who discovered the element Potassium via electrolytic extraction shortly after isolating Sodium?
Correct Answer: Option B
Explanation:
Sir Humphry Davy isolated potassium in 1807 by running current through molten caustic potash ($KOH$).
Sir Humphry Davy isolated potassium in 1807 by running current through molten caustic potash ($KOH$).
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered the biological mechanism of cloning in mammals, producing 'Dolly the Sheep' in 1996?
Correct Answer: Option C
Explanation:
Wilmut and Campbell successfully cloned an adult somatic cell using nuclear transfer methods at the Roslin Institute.
Wilmut and Campbell successfully cloned an adult somatic cell using nuclear transfer methods at the Roslin Institute.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The invention of the common mechanical device known as the modern coin-operated parking meter was patented by whom?
Correct Answer: Option A
Explanation:
Carl Magee patented the 'Park-O-Meter' in Oklahoma City in 1935 to regulate downtown vehicle traffic turnover.
Carl Magee patented the 'Park-O-Meter' in Oklahoma City in 1935 to regulate downtown vehicle traffic turnover.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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