Question:medium
Which of the following is not a semi-synthetic polymer?
Which of the following is not a semi-synthetic polymer?
Show Hint
Semi-synthetic polymers are derived from natural sources but chemically modified for enhanced properties.
Updated On: Jan 13, 2026
- Cis-polyisoprene
- Cellulose nitrate
- Cellulose acetate
- Vulcanised rubber
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Definition of Semi-Synthetic Polymers
Semi-synthetic polymers result from the chemical alteration of natural polymers.
Illustrative examples are cellulose derivatives and altered rubber.
Step 2: Categorization of Provided Choices
Cis-polyisoprene represents natural rubber and is thus not a semi-synthetic polymer.
Cellulose nitrate and Cellulose acetate are cellulose derivatives that have undergone modification.
Vulcanized rubber is natural rubber subjected to chemical treatment, qualifying it as semi-synthetic.
Conclusion: As cis-polyisoprene is natural rubber, the accurate selection is (A).
Semi-synthetic polymers result from the chemical alteration of natural polymers.
Illustrative examples are cellulose derivatives and altered rubber.
Step 2: Categorization of Provided Choices
Cis-polyisoprene represents natural rubber and is thus not a semi-synthetic polymer.
Cellulose nitrate and Cellulose acetate are cellulose derivatives that have undergone modification.
Vulcanized rubber is natural rubber subjected to chemical treatment, qualifying it as semi-synthetic.
Conclusion: As cis-polyisoprene is natural rubber, the accurate selection is (A).
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