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The table below shows a list of some chemical substances and the sources from which they are obtained but not correctly matched. In a tabular form, match each chemical substance with its correct source.
| Substance | Source | |
| (i) | Ammonia | Lime water |
| (ii) | Potassium hydroxide | Sour palm wine |
| (iii) | Calcium oxide | Green vegetables |
| (iv) | Ethanoic acid | Ashes of plants |
| (iv) | Ascorbic acid | Decomposed organic matter |