UPSC CDS 1 2020 GK Paper
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Question : 21 of 120
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Match List-I with List-II and select the correct answer using the code given below the Lists :
| List I (Name) | List II (Formula) |
|---|---|
| A. Bleaching powder | 1. |
| B. Baking soda | 2. |
| C. Washing soda | 3. |
| D. Slaked lime | 4. |
| A | B | C | D | |
|---|---|---|---|---|
| (a) | 4 | 1 | 2 | 3 |
| (b) | 4 | 2 | 1 | 3 |
| (c) | 3 | 2 | 1 | 4 |
| (d) | 3 | 1 | 2 | 4 |
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