| Solution | Length | |
|---|---|---|
| 5 letters | ||
| thane | 5 | |
| 6 letters | ||
| butane | 6 | |
| ethane | 6 | |
| 7 letters | ||
| propane | 7 | |
| methane | 7 | |
| 14 letters | ||
| CARBONMONOXIDE | 14 | |
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