- - Citrus colorant
- - Flammable hydrocarbon gas
- - Vacated emplacement hastily — leave nerve gas
- - Gas is initially escaping your tip within hearing
- - yet helen synthesised gas
- - Colorless, flammable gas
- - Colorless, flammable gas used as an anesthetic
- - ........ glycol (antifreeze)
- - C2H4
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