The invention of synthetic nylon fiber, which replaced silk in textiles, was led by which chemist at DuPont? MCQ with Answer and Explanation

Question
The invention of synthetic nylon fiber, which replaced silk in textiles, was led by which chemist at DuPont?
A. Leo Baekeland
B. Roy Plunkett
C. Wallace Carothers
D. Stephanie Kwolek
Answer: Option C
Solution (By JKSSB Mock Tests)
Wallace Carothers invented Nylon (Polyamide 6,6) and Neoprene synthetic rubber in the 1930s.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
Who discovered the antibiotic Streptomycin, the first effective cure for tuberculosis, winning a Nobel Prize in 1952?
A. Howard Florey
B. Edward Abraham
C. Selman Waksman
D. Alexander Fleming
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Correct Answer: Option C

Explanation:
Selman Waksman discovered several antibiotics produced by soil microbes, including streptomycin.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who invented the modern air conditioning system to control indoor temperature and humidity levels in 1902?
A. Nikola Tesla
B. Willis Carrier
C. James Dewar
D. Benjamin Franklin
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Correct Answer: Option B

Explanation:
Willis Carrier designed the first mechanical air conditioning apparatus to solve humidity problems inside a printing plant.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered the presence of the cellular mitochondria organelle, naming them 'bioblasts' before they were renamed?
A. Richard Altmann
B. Robert Hooke
C. Camillo Golgi
D. Carl Benda
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Correct Answer: Option A

Explanation:
Richard Altmann identified the structures in 1890; Carl Benda later coined the exact term 'mitochondria' in 1898.
This question belongs to: Static General Knowledge Inventions and Discoveries
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