Which of the following pairs are correctly matched?
| Acid | Use |
| 1. Oxalic Acid | Bleaching of leather |
| 2. Acetic Acid | Processing of foods |
| 3. Citric Acid | Washing metals |
| 4. Benzoic Acid | Accumulation batteries |
Select the correct answer using the code given below.
1
1 and 3 only
2
2 and 4 only
3
2 and 3 only
4
1, 2 and 3 only