Question

Which among following statements is NOT true for neoprene?

• A. It is resistant to petroleum
• B. It is obtained from styrene
• C. It is a synthetic rubber
• D. It is a condensation polymer

Hint:

Always pair the suffix or phonetic sound of the polymer name with its monomer counterpart. Chlo-roprene forms Neo-prene. If a statement connects Neoprene to Styrene, it is an automatic red flag.

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
The problem requires us to review four chemical and physical characteristics of the polymer neoprene and pinpoint the statement that is fundamentally incorrect.

Step 2: Detailed Explanation:
Let's evaluate the properties and synthesis parameters of neoprene:
Neoprene is a well-known synthetic rubber (elastomer) valued for maintaining structural flexibility over a wide temperature range. Hence, statement (C) is true.
It exhibits high chemical stability and showcases excellent resistance to damage from petroleum-based oils, fats, and organic solvents. Hence, statement (A) is true.
Looking at its polymer classification, it can technically be viewed as an addition polymer formed by chain-growth polymerization, though the core structural question lies in its monomer unit.
Neoprene is prepared by the free radical polymerization of chloroprene (2-chloro-1,3-butadiene). Styrene is the monomer unit for polystyrene or SBR (Styrene-Butadiene Rubber), not neoprene. Thus, statement (B) is completely false.

Step 3: Final Answer:
The incorrect statement is that it is obtained from styrene, which corresponds to option (B).