Question

Match List - I with List - II.

List - I (Fibre)	List - II (Process)
A. Viscose B. Acetate C. Nylon-6 D. Kevlar	I. Dry jet wet spinning II. Wet spinning III. Dry spinning IV. Melt spinning

• A. A-I, B-II, C-III, D-IV
• B. A-I, B-II, C-IV, D-III
• C. A-IV, B-III, C-II, D-I
• D. A-II, B-III, C-IV, D-I

Hint:

Shortcut: If it melts, it's Melt Spun (Nylon/Polyester). If it's a solution and the solvent evaporates, it's Dry Spun (Acetate). If it reacts in a bath, it's Wet Spun (Viscose).

Answer 1

The Correct Option is D

Concept: The spinning method for a synthetic or regenerated fiber is determined by the polymer's melting point and its decomposition temperature.

Step 1: Identifying Melt and Dry Spinning.
Nylon-6 is a thermoplastic that melts without decomposing, so it uses Melt spinning (IV). Acetate is dissolved in acetone and the solvent is evaporated in air, which is Dry spinning (III).

Step 2: Identifying Wet and specialized systems.
Viscose involves a chemical regeneration in a liquid bath, known as Wet spinning (II). Kevlar (Aramid) uses a specialized Dry jet wet spinning (I) to achieve high molecular alignment through an air gap.

Step 3: Final Matching.
Matching the items results in: A-II, B-III, C-IV, D-I.