Question

Match List-I with List-II

List-I (Package Form)	List-II (Package Production Technique)
(A) Milk bottle	(I) Extrusion
(B) Milk pouches crate	(II) Thermoforming
(C) Yoghurt cup	(III) Extrusion blow moulding
(D) Milk pouch film	(IV) Injection moulding

• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (II), (D) - (I)
• (A) - (IV), (B) - (II), (C) - (III), (D) - (I)
• (A) - (II), (B) - (IV), (C) - (I), (D) - (III)

Hint:

Remember that heavy-duty, reusable plastic crates are always produced by injection moulding to achieve thick, high-strength walls. This helps quickly match (B) with (IV).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Plastic packaging materials are manufactured using different thermo-mechanical techniques depending on the polymer type, thickness, flexibility, and shape required for the final package.

Step 2: Detailed Explanation:
Let us match the packaging forms in List-I with their manufacturing techniques in List-II:
- (A) Milk bottle matches with (III) Extrusion blow moulding: Rigid plastic milk bottles (such as those made from HDPE) are produced by extruding a hollow tube of molten plastic (parison), clamping it in a mould, and blowing air into it to form the bottle shape. Thus, (A) matches with (III).
- (B) Milk pouches crate matches with (IV) Injection moulding: High-strength, rigid structural crates (made from PP or HDPE) are manufactured by injecting molten plastic under high pressure into a closed mould cavity. Thus, (B) matches with (IV).
- (C) Yoghurt cup matches with (II) Thermoforming: Shallow plastic cups (such as those made from polystyrene) are produced by heating a flat plastic sheet until malleable and pressing or vacuum-forming it over a male or female mould. Thus, (C) matches with (II).
- (D) Milk pouch film matches with (I) Extrusion: Flexible multi-layer films (such as LDPE/LLDPE) used to package liquid milk are manufactured using blown film extrusion, where molten polymer is extruded through a circular die. Thus, (D) matches with (I).
Combining these pairs gives the match: (A) - (III), (B) - (IV), (C) - (II), (D) - (I).

Step 3: Final Answer:
The correct matching sequence is (A) - (III), (B) - (IV), (C) - (II), (D) - (I). Hence, the correct option is (B).