JEE Main202329 Jan 2023Evening ShiftChemistryPolymersActual
Match List-I and List-II. List-I List-II A. Elastomeric polymer I. Urea formaldehyde resin B. Fibre polymer II. Polystyrene C. Thermosetting polymer III. Polyester D. Thermoplastic polymer IV. Neoprene Choose the correct answer from the options given below:
Options
- AA-II, B-III, C-I, D-IV
- BA-II, B-I, C-IV, D-III
- CA-IV, B-III, C-I, D-II
- DA-IV, B-I, C-III, D-II
Correct answer
C. A-IV, B-III, C-I, D-II
Step-by-step solution
(A) Rubber is a natural polymer and possesses elastic properties. It is also termed as elastomeric polymer. Neoprene is a family of synthetic rubbers that are produced by the polymerization of chloroprene. So, the correct matching of elastomeric polymer is neoprene. (B) Polyesters are the polycondensation products of dicarboxylic acids and diols. Dacron or terylene is the best-known example of polyester. Dacron fibre is crease-resistant and is used in blending with cotton and wool fibres and also as glass reinforci