Match List I (Compound) with List II (Use) and select the correct answser using the codes given below the lists. List I A. Cellulose nitrate B. Potassium sulphate C. Potassium salt of fatty adds D. Calcium oxide List II 1. Soft soap 2. Gun powder 3. Fertilizer 4. Glass Codes: ABCD ABCD

The correct matching of compounds to their uses is as follows: Cellulose nitrate, also known as guncotton, is a highly flammable compound used as a propellant in gunpowder and explosives. Potassium sulphate is an inorganic salt primarily utilized as a specialty fertilizer to provide essential potassium and sulfur nutrients to crops, particularly those sensitive to chloride [1]. Potassium salts of long-chain fatty acids are the primary chemical constituents of soft soaps, produced through the saponification process where fats react with potassium hydroxide [2]. Calcium oxide, commonly known as quicklime, is a critical flux in the glass manufacturing industry, used to improve the chemical durability and workability of the glass melt. Therefore, the correct sequence is A-2, B-3, C-1, D-4, which corresponds to Option 1.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 4: Carbon and its Compounds > CH COOH CH CH OH CH C C CH CH H O 3 3 2 3 2 3 2 Acid O (E - + - - - - - + thanoic acid) (Ethanol) (Ester) O > p. 73
2. [2] https://nios.ac.in/media/documents/secscicour/CHAPTER21.pdf