The invention of the common chemical manufacturing system known as the Contact Process optimized production of what? MCQ with Answer and Explanation

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The invention of the common chemical manufacturing system known as the Contact Process optimized production of what?

A. Nitric Acid

B. Sulfuric Acid

C. Ammonia

D. Hydrochloric Acid

Answer: Option B

Solution (By JKSSB Mock Tests)

Peregrine Phillips patented the contact process in 1831, using platinum catalysts to convert sulfur dioxide into sulfur trioxide.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered that the planet Saturn has a prominent ring system and its largest moon, Titan?

A. Christiaan Huygens

B. Galileo Galilei

C. Giovanni Cassini

D. William Herschel

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Correct Answer: Option A

Explanation:
Christiaan Huygens correctly identified Saturn's rings in 1655 and discovered its largest moon, Titan.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who discovered that the chemical element Magnesium is isolated as a distinct metal element via mercury amalgamation?

A. Antoine Lavoisier

B. Joseph Black

C. Carl Wilhelm Scheele

D. Humphry Davy

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Correct Answer: Option D

Explanation:
Black identified magnesium compounds early, but Sir Humphry Davy isolated pure metallic magnesium via electrochemical processing in 1808.

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Question #3

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

A. Christopher Sholes

B. John Loud

C. John Pratt and Franz Xaver Wagner

D. Walter Hunt

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Correct Answer: Option C

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

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