The invention of the highly reflective silver glass surface mirror layout was developed by which chemist? MCQ with Answer and Explanation

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The invention of the highly reflective silver glass surface mirror layout was developed by which chemist?

A. Carl Wilhelm Scheele

B. Justus von Liebig

C. Robert Bunsen

D. Antoine Lavoisier

Answer: Option B

Solution (By JKSSB Mock Tests)

Liebig developed the chemical process of depositing thin metallic silver onto glass panes using chemical reduction reactions in 1835.

This question belongs to: Static General Knowledge Inventions and Discoveries

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The barometers, used to measure atmospheric pressure, was invented by whom?

A. Robert Boyle

B. Evangelista Torricelli

C. Otto von Guericke

D. Blaise Pascal

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Correct Answer: Option B

Explanation:
Evangelista Torricelli, an Italian physicist, invented the mercury barometer in 1643.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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The invention of the common mechanical office typewriter spool ribbon reversal mechanism was patented by whom?

A. John Loud

B. Christopher Sholes

C. Walter Hunt

D. John Pratt and Franz Xaver Wagner

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Correct Answer: Option D

Explanation:
Wagner patented the front-strike visibility layout and automated ribbon reversing wheels, which Underwood manufactured.

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Question #3

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The invention of the common household vacuum storage device known as the Thermos Flask was developed by whom?

A. Willis Carrier

B. James Joule

C. James Dewar

D. Thomas Edison

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Correct Answer: Option C

Explanation:
Sir James Dewar invented the double-walled vacuum-insulated silvered glass flask in 1892 to isolate cryogenic liquefied gases.

This question belongs to: Static General Knowledge Inventions and Discoveries

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