The term 'vitamin' was coined by which biochemist in 1912? MCQ with Answer and Explanation

The term 'vitamin' was coined by which biochemist in 1912?

A. Frederick Hopkins

B. Louis Pasteur

C. Robert Koch

D. Casimir Funk

Answer: Option D

Polish biochemist Casimir Funk coined the term 'vitamine' (later shortened to vitamin) to describe vital amine nutrients.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1 Report Error

The invention of the common mechanical office stapler mechanism was popularized by which manufacturing developer?

A. John Loud

B. George McGill and the Boston Wire Stitcher Company

C. Christopher Sholes

D. Walter Hunt

Correct Answer: Option B

Explanation:
McGill patented functional malleable brass paper fasteners, and industrial developers later automated magazine tracking feeds.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2 Report Error

Who invented the acoustic phonograph, capturing audio playback on tin foil cylinders?

A. Thomas Edison

B. Alexander Graham Bell

C. Nikola Tesla

D. Emile Berliner

Correct Answer: Option A

Explanation:
Thomas Alva Edison invented the phonograph in 1877, capturing acoustic sound waves mechanically via steel needles onto soft foils.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3 Report Error

Who discovered the radioactive elements Radium and Polonium?

A. Otto Hahn

B. Ernest Rutherford

C. Henri Becquerel

D. Marie and Pierre Curie

Correct Answer: Option D

Explanation:
Marie Skłodowska-Curie and her husband Pierre isolated polonium and radium from pitchblende ore in 1898.

This question belongs to: Static General Knowledge Inventions and Discoveries