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Sraith homalógach hidreacarbóin ina bhfuil, ar a laghad, nasc dúbailte carbóin-charbóin is ea ailcéin. Tugtar olaifíní orthu freisin. Tá líon na n-adamh hidrigine in ailcéin dhá oiread líon na n-adamh carbóin, agus mar sin is í a bhfoirmle ghinearálta ná CnH2n. Mar shampla, is í an fhoirmle mhóilíneach d'eitéin ná C2H4 , agus i gcás próipéine is í C3H6.
Imoibritheach go príomha trí shuimiú.[1]
Ainm | Foirmle mhóilíneach | Líon na n-adamh carbóin | Mais mhólarach | Uimhir CAS | Foirmle struchtúrach |
---|---|---|---|---|---|
Eitiléin (o etene) |
C2H4 | 2 | 28,054 g/mol | 74-85-1 | |
Próipéin (o propene) |
C3H6 | 3 | 42,08 g/mol | 115-07-1 | |
1-Búitéin (o 1-butene) |
C4H8 | 4 | 56,11 g/mol | 106-98-9 | |
1-Peintéin | C5H10 | 5 | 70,13 g/mol | 109-67-1 |
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