The invention of the common chemical processing method known as the Ostwald Process optimized production of what? MCQ with Answer and Explanation

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The invention of the common chemical processing method known as the Ostwald Process optimized production of what?

A. Ammonia

B. Nitric Acid

C. Phosphoric Acid

D. Sulfuric Acid

Answer: Option B

Solution (By JKSSB Mock Tests)

Wilhelm Ostwald patented the catalytic oxidation of ammonia over platinum mesh sheets in 1902, securing key munitions chemicals.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered that certain types of organic crystals display liquid fluid mobility while maintaining optical structural alignment, founding Liquid Crystals?

A. Justus von Liebig

B. Leo Baekeland

C. Friedrich Reinitzer

D. Otto Lehmann

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Correct Answer: Option C

Explanation:
Austrian botanist Reinitzer discovered the distinct dual melting profile of cholesteryl benzoate in 1888.

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Question #2

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The invention of the first practical steam engine, the atmospheric engine, was completed by whom?

A. George Stephenson

B. James Watt

C. Thomas Savery

D. Thomas Newcomen

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Correct Answer: Option D

Explanation:
Thomas Newcomen constructed the first practical piston-driven condensing atmospheric engine in 1712 to pump water from mines.

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Question #3

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Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?

A. Isidor Isaac Rabi

B. Peter Mansfield

C. Felix Bloch

D. Paul Lauterbur

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Correct Answer: Option A

Explanation:
Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.

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