Project ForgeChemical Technology
Organic Chemical Industries
GATE 2012
Medium
Match the polymer in Group I to the polymer characteristic in Group II: P. Polyethylene, Q. Phenol-formaldehyde polymer, R. Polyisoprene, S. Polyester — I. Elastomer, II. Fiber, III. Thermoplastic, IV. Thermosetting polymer
- P-III, Q-IV, R-I, S-II
- BP-IV, Q-II, R-III, S-I
- CP-III, Q-II, R-I, S-IV
- DP-IV, Q-III, R-I, S-II
Explanation
Polyethylene is a thermoplastic (P-III). Phenol-formaldehyde is a classic thermosetting polymer (Q-IV). Polyisoprene (natural rubber) is an elastomer (R-I). Polyester is spun into fiber (S-II).
Source: GATE CH 2012 (2012)
This question is part of a 15-day revision cycle — sign in and Project Forge will bring it back the day before you'd forget it.