- 1(current)
Q. No.Match the materials given in Column I with the polymers given in Column II.
| Column I | Column II |
| A. Natural rubber latex | 1. Nylon |
| B. Wood laminates | 2. Dacron |
| C. Ropes and fibers | 3. Urea-formaldehyde resins |
| D. Polyester fabric | 4. cis-polyisoprene |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 4 | 1 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 3 | 1 | 2 |
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Match the polymers given in Column-I with their repeating units given in Column-II. Choose the correct option from the codes given below :
| Column-I | Column-II |
| (a) Polystyrene | (p)  |
| (b) Novolac | (q)  |
| (c) Buna-N | (r)  |
| (d) Acrilan | (s)  |
| (a) | (b) | (c) | (d) | |
| 1. | (s) | (r) | (q) | (p) |
| 2. | (r) | (p) | (s) | (q) |
| 3. | (p) | (q) | (r) | (s) |
| 4. | (q) | (s) | (p) | (r) |
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Plastic household crockery is prepared by using :
1. Melamine and tetrafluoroethane.
2. Malonic acid and hexamethylene imine.
3. Melamine and vinyl acetate.
4. Melamine and formaldehyde.
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- 1(current)
Q. No.
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