Who invented the first operational hot air balloon, executing the first recorded human flight? MCQ with Answer and Explanation

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Who invented the first operational hot air balloon, executing the first recorded human flight?

A. Otto Lilienthal

B. Montgolfier Brothers

C. Wright Brothers

D. Count Ferdinand von Zeppelin

Answer: Option B

Solution (By JKSSB Mock Tests)

Joseph-Michel and Jacques-Étienne Montgolfier developed and demonstrated the hot air balloon in France in 1783.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

Who invented the first functional integrated circuit (microchip) in 1958?

A. Alan Turing

B. Douglas Engelbart

C. Jack Kilby and Robert Noyce

D. John Bardeen

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Correct Answer: Option C

Explanation:
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

Who discovered the presence of the complex radioactive element Plutonium in 1940?

A. Glenn T. Seaborg and his team

B. Otto Hahn

C. Lise Meitner

D. Enrico Fermi

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Correct Answer: Option A

Explanation:
Glenn Seaborg, Edwin McMillan, Joseph Kennedy, and Arthur Wahl isolated plutonium-238 via deuteron bombardment of uranium.

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Question #3

The invention of the first functional synthetic dye, Mauveine, was an accidental discovery by which young chemist?

A. Fritz Haber

B. Antoine Lavoisier

C. William Henry Perkin

D. August Wilhelm von Hofmann

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Correct Answer: Option C

Explanation:
Perkin accidentally synthesized aniline purple dye in 1856 while attempting to manufacture artificial anti-malarial quinine out of coal tar.

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