Question

Who first coined the word ``Macromolecules''?

• A. Karl Ziegler
• B. Giulio Natta
• C. P.J. Flory
• D. Staudinger

Hint:

Hermann Staudinger is known as the father of polymer chemistry for establishing that polymers are long-chain molecules, not molecular aggregates.

Answer 1

The Correct Option is D

Step 1: Understanding the concept of macromolecules.
Macromolecules are very large molecules formed by the repetition of smaller structural units called monomers. The concept of macromolecules was revolutionary because, earlier, polymers were believed to be aggregates of small molecules rather than long-chain structures.
Step 2: Historical contribution.
Hermann Staudinger, a German chemist, introduced the term ``macromolecule'' in the early 1920s. He proposed that substances like rubber and cellulose consist of long-chain molecules with high molecular weight, which laid the foundation of modern polymer chemistry.
Step 3: Analysis of options.
(A) Karl Ziegler: Known for Ziegler–Natta catalysts but did not coin the term macromolecule.
(B) Giulio Natta: Contributed to stereochemistry of polymers, not the terminology.
(C) P.J. Flory: Developed polymer chemistry theory but did not introduce the term.
(D) Staudinger: Correct — He first coined the term ``macromolecules'' and is regarded as the father of polymer chemistry.
Step 4: Conclusion.
The word ``macromolecules'' was first coined by Hermann Staudinger, making option (D) the correct answer.