| Answer | Crossword Clue |
|---|---|
| butadiene | a hydrocarbon used in making synthetic rubber |
| butadienes | BUTADIENE, a hydrocarbon used in making synthetic rubber |
| butadiene | a flammable gaseous open chain hydrocarbon C4H6 used in making synthetic rubbers |
| phenanthrene | A crystalline hydrocarbon present in coal tar, used esp. in making dyes and synthetic drugs |
| bivinyl | a flammable gas used in making synthetic rubber |
| bivinyls | BIVINYL, a flammable gas used in making synthetic rubber |
| isobutylene | An easily liquefied hydrocarbon gas, (CH3)2C=CH2, used in the making of butyl rubber |
