Question

Which from following polymers is used to obtain articles like rain coats?

• A. \(-\,\,[\text{CH}_2-\text{CH}_2]\,\,-_n\)
• B. \(-\,\,[\text{CH}_2-\underset{\text{CN}}{\text{CH}}]\,\,-_n\)
• C. \(-\,\,[\text{CH}_2-\underset{\text{Cl}}{\text{CH}}]\,\,-_n\)
• D. \(-\,\,[\text{CF}_2-\text{CF}_2]\,\,-_n\)

Hint:

Polyvinyl chloride (PVC) is used for raincoats, pipes and similar items.

Answer 1

The Correct Option is C

Step 1: Identify the structures
(C) has a Cl attached to alternate carbons of the chain, which is polyvinyl chloride.

Step 2: Recall the use
PVC gives waterproof sheets, so it is used for raincoats. Option (C).

Final Answer:
The polymer is PVC, option (C). \[ \boxed{\text{PVC}} \]