Who discovered that structural chemical atoms are arranged in strict configurations characterized by coordination numbers, founding inorganic stereochemistry? MCQ with Answer and Explanation

Who discovered that structural chemical atoms are arranged in strict configurations characterized by coordination numbers, founding inorganic stereochemistry?
A. Alfred Werner
B. Linus Pauling
C. Dmitri Mendeleev
D. Gilbert Lewis
Answer: Option A
Solution (By JKSSB Mock Tests)
Alfred Werner proposed the coordination theory of complex inorganic compounds, winning the 1913 Nobel Prize in Chemistry.

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Practice More Inventions and Discoveries Questions

Question #1
Who discovered that the chemical element Calcium is isolated via electrolysis of lime and mercuric oxide mixtures?
A. Humphry Davy
B. Jöns Jacob Berzelius
C. Joseph Black
D. Antoine Lavoisier

Correct Answer: Option A


Explanation:
Sir Humphry Davy isolated elemental calcium metal in 1808 using a mercury-cell electrolysis setup.

Question #2
Who is the inventor of the Richter Scale used to measure the magnitude of earthquakes?
A. Charles Richter
B. James Hutton
C. Alfred Wegener
D. Giuseppe Mercalli

Correct Answer: Option A


Explanation:
Charles F. Richter developed the Richter magnitude scale in 1935 in partnership with Beno Gutenberg.

Question #3
The invention of the common synthetic fiber Polyester (PET) was achieved by which research team?
A. Wallace Carothers
B. John Rex Whinfield and James Tennant Dickson
C. Stephanie Kwolek
D. Leo Baekeland

Correct Answer: Option B


Explanation:
Whinfield and Dickson patented polyethylene terephthalate (Terylene/Polyester) in England in 1941.