| Answer | Crossword Clue |
|---|---|
| ETHENE | Gas used as an anesthetic |
| PCP | Anesthetic used as an animal tranquilizer |
| ETHER | Aromatic liquid formerly used as an anesthetic |
| ETHANE | Gas used as fuel |
| STIBINE | Gas used as fumigant |
| OZONE | Gas used as water purifier. |
| ETHANE | Gas used as a fuel |
| BUTANE | Compound used as a fuel gas |
| ETHANE | Colorless, odorless gas used as fuel |
