Question
Download Solution PDFMatch List I with List II and select the answer using the code given below the Lists:
List I (Chemical Name) | List II (Chemical Formula) |
A. Washing soda | 1. CaOCl₂ |
B. Baking soda | 2. NaHCO₃ |
C. Bleaching powder | 3. Na₂CO₃·10H₂O |
D. Gypsum | 4. CaSO₄·2H₂O |
Code:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Chemical Names and Their Formulas
- Chemicals are often referred to by their common names, but they also have specific chemical formulas that represent their composition.
- Matching chemical names with their correct formulas is essential for understanding their properties and applications.
- Below are common examples:
- Washing soda: Na₂CO₃·10H₂O (Sodium carbonate decahydrate)
- Baking soda: NaHCO₃ (Sodium bicarbonate)
- Bleaching powder: CaOCl₂ (Calcium oxychloride)
- Gypsum: CaSO₄·2H₂O (Calcium sulfate dihydrate)
Therefore, the correct answer (a) - (3) , (b) - (2) , (c) - (1) , (d) - (4)
Last updated on Jun 18, 2025
->UPSC has extended the UPSC NDA 2 Registration Date till 20th June 2025.
-> A total of 406 vacancies have been announced for NDA 2 Exam 2025.
->The NDA exam date 2025 has been announced. The written examination will be held on 14th September 2025.
-> The selection process for the NDA exam includes a Written Exam and SSB Interview.
-> Candidates who get successful selection under UPSC NDA will get a salary range between Rs. 15,600 to Rs. 39,100.
-> Candidates must go through the NDA previous year question paper. Attempting the NDA mock test is also essential.