| Answer | Crossword Clue |
|---|---|
| MURIATIC | ... acid (old name for hydrochloric acid) |
| hydracid | acid that does not contain oxygen, as hydrochloric acid, HCl |
| dioxonitric | as in dioxonitric acid, the systematic name of nitrous acid |
| propionic | as in propionic acid, a former name of propanoic acid also PROPANOIC |
