Who discovered the existence of blood capillaries linking arteries to veins, completing Harvey's circulation theory? MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Inventions and Discoveries Questions
Question #1
Report Error
Who discovered the chemical element Chlorine in 1774?
Correct Answer: Option B
Explanation:
Swedish-German chemist Carl Wilhelm Scheele isolated chlorine gas, mistakenly thinking it contained oxygen. Humphry Davy later identified it as an element.
Swedish-German chemist Carl Wilhelm Scheele isolated chlorine gas, mistakenly thinking it contained oxygen. Humphry Davy later identified it as an element.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
Report Error
Who invented the first mass-produced synthetic plastic material, Bakelite, in 1907?
Correct Answer: Option A
Explanation:
Belgian-American chemist Leo Baekeland invented Bakelite, the first fully synthetic plastic valued for its electrical non-conductivity.
Belgian-American chemist Leo Baekeland invented Bakelite, the first fully synthetic plastic valued for its electrical non-conductivity.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
Report Error
Who discovered that light waves traveling through tiny structural apertures display edge-bending profiles, establishing Diffraction?
Correct Answer: Option D
Explanation:
Italian physicist Grimaldi coined the exact term 'diffraction' and accurately recorded the phenomenon in a posthumous 1665 publication.
Italian physicist Grimaldi coined the exact term 'diffraction' and accurately recorded the phenomenon in a posthumous 1665 publication.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
No comments yet. Be the first to start the discussion!