Question:
What type of polymer is the polystyrene?
What type of polymer is the polystyrene?
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Polystyrene softens on heating and hardens on cooling repeatedly.
Updated On: Nov 12, 2026
- a thermoplastic polymer
- a thermosetting polymer
- an elastomer
- a cross-linked polymer
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
Thermoplastics are linear or slightly branched polymers that soften on heating and harden on cooling.
Step 2: Polystyrene
It is made of linear chains of styrene units and can be remoulded repeatedly.
Step 3: Conclusion
So polystyrene is a thermoplastic. Thermosetting and cross-linked polymers cannot be remoulded.
Final Answer:
Polystyrene is a thermoplastic polymer. \[ \boxed{\text{(A) }\text{a thermoplastic polymer}} \]
Thermoplastics are linear or slightly branched polymers that soften on heating and harden on cooling.
Step 2: Polystyrene
It is made of linear chains of styrene units and can be remoulded repeatedly.
Step 3: Conclusion
So polystyrene is a thermoplastic. Thermosetting and cross-linked polymers cannot be remoulded.
Final Answer:
Polystyrene is a thermoplastic polymer. \[ \boxed{\text{(A) }\text{a thermoplastic polymer}} \]
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