TS EAMCET · Chemistry · Polymers

The structure given below is an example of

I. A condensation and biodegradable polymer.
II. A biodegradable and thermoplastic polymer.
III. A biodegradable and thermosetting polymer.
IV. A polyester and thermoplastic polymer.

A I, II and III
B I, II and IV
C I, III and IV
D II, III and IV

Verified Solution

Answer & Solution

Correct Answer

(B) I, II and IV

Step-by-step Solution

Detailed explanation

It is PHBV, i.e. poly- \(\beta\)-hydroxy butyrate-co- \(\beta\)-hydroxy valerate. It is a condensation, biodegradable and thermoplastic polyester (copolymer). So, statements I, II and IV are correct.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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The structure given below is an example of I. A condensation and biodegradable polymer.II. A biodegradable and thermoplastic polymer. III. A biodegradable and thermosetting polymer. IV. A polyester and thermoplastic polymer.

Step-by-step Solution

The structure given below is an example of

I. A condensation and biodegradable polymer.
II. A biodegradable and thermoplastic polymer.
III. A biodegradable and thermosetting polymer.
IV. A polyester and thermoplastic polymer.