Match List-I with List-IList-I List II A. Phenol-formaldehyde resin I Glyptal B. The copolymer of 1,3-butadiene and styrene II Novolac C. Polyester of glycol and phthalic acid III Buna-S D. Polyester of glycol and terephthalic acid IV Dacron
Choose the correct answer from the option given below:
| List-I | List II | ||
|---|---|---|---|
| A. | Phenol-formaldehyde resin | I | Glyptal |
| B. | The copolymer of 1,3-butadiene and styrene | II | Novolac |
| C. | Polyester of glycol and phthalic acid | III | Buna-S |
| D. | Polyester of glycol and terephthalic acid | IV | Dacron |
- A-II, B-III, C-IV, D-I
- A-II, B-III, C-I, D-IV
- A-II, B-I, C-III, D-IV
- A-III, B-II, C-IV, D-I
The Correct Option is B
Solution and Explanation
To solve this matching question, we need to understand the properties and common applications of each type of polymer mentioned. Let's match List-I with List-II using our knowledge of these substances:
- Phenol-formaldehyde resin: This is a polymer known as Novolac. It is used in the production of Bakelite, a widely used thermosetting plastic.
- Matches with: II (Novolac)
- The copolymer of 1,3-butadiene and styrene: This polymer is commonly called Buna-S. It is a type of synthetic rubber used in tires.
- Matches with: III (Buna-S)
- Polyester of glycol and phthalic acid: This polymer is known as Glyptal, used in paints and as an electrical insulating material.
- Matches with: I (Glyptal)
- Polyester of glycol and terephthalic acid: This polymer is known as Dacron or Poly(ethylene terephthalate) (PET). It is used in fibers for clothing and containers for liquids and foods.
- Matches with: IV (Dacron)
Based on the matches above, the correct option is: A-II, B-III, C-I, D-IV.
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Concepts Used:
Polymers of Commercial Importance
- Polypropene is formed by the repetitive joining of propene. Propene is the monomer of Polypropene. It is used in the preparation of different materials like fibres, ropes, pipes etc.
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