MCQOPTIONS
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| 1. |
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of |
| A. | cross linked polystyrene. |
| B. | phenol formaldehyde resins. |
| C. | polyesters. |
| D. | polyamides. |
| Answer» B. phenol formaldehyde resins. | |