Match List I (Industrial processes) with List II (Industry with which associated) and select the correct answer using the codes given below the Lists: 1. List I: I. Cracking, II. Smelting, III. Hydrogenation, IV. Vulcanization 2. List II: A) Rubber, B) Petroleum, C) Copper, D) Edible fats Codes:

The question asks to match industrial processes with the associated industry. 1. Cracking is a process used in the petroleum industry to break down large hydrocarbon molecules into smaller, more useful ones (like gasoline). (I matches B) 2. Smelting is a process of applying heat to ore in order to extract a base metal. It is commonly used for metals like copper. (II matches C) 3. Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. It is used to convert liquid vegetable oils into solid or semi-solid fats (edible fats), such as in the production of margarine. (III matches D) 4. Vulcanization is a chemical process for converting natural rubber or related polymers into more durable materials by adding sulfur or other equivalent curatives or accelerators. (IV matches A) Therefore, the correct matching is I-B, II-C, III-D, IV-A.