| Answer | Crossword Clue |
|---|---|
| OZONE | Gas used as water purifier. |
| METER | Used with water or gas |
| STIBINE | Gas used as fumigant |
| ETHANE | Gas used as fuel |
| ETHANE | Gas used as a fuel |
| ETHENE | Gas used as an anesthetic |
| ETHANE | Colorless, odorless gas used as fuel |
| BUTANE | Compound used as a fuel gas |
