2024 · Q17
Match List-I with List-II and select the correct answer using the code given below the Lists: List I (Trade Name) List II (Chemical Name) A. Bleaching powder
- 1Sodium bicarbonate B. Baking soda
- 2Sodium carbonate, 10 water C. Washing soda
- 3Calcium oxychloride D. Plaster of Paris
- 4Calcium sulphate, 1/2 water
General KnowledgeChemistry
- AA - 3, B - 1, C - 2, D - 4
- BA - 3, B - 2, C - 1, D - 4
- CA - 4, B - 2, C - 1, D - 3
- DA - 4, B - 1, C - 2, D - 3
Explanation
Bleaching powder is calcium oxychloride (CaOCl2), baking soda is sodium bicarbonate (NaHCO3), washing soda is sodium carbonate decahydrate (Na2CO3·10H2O), and Plaster of Paris is calcium sulphate hemihydrate (CaSO4·1/2H2O). Matching A-3, B-1, C-2, D-4 gives the only consistent code. Hence option A is correct.