21. In addition, the alkene to alkane ratio increases. 22. Alkane conformers arise from rotation around sp 3 hybridised carbon carbon sigma bonds.23. It is the substituent form of the alkane pentane. 24. In this case an alkane is formed along with the formation of benzene. 25. AFAIK this mixture will reduce aliphatic alcohols into alkanes . 26. Partially fluorinated alkanes are the hydrofluorocarbons ( HFCs ). 27. N-alkanes are also known to preserve detailed information of source material. 28. Simple cycloalkanes have a prefix " cyclo-" to distinguish them from alkanes . 29. Stronger intermolecular van der Waals forces give rise to greater boiling points of alkanes . 30. In crude oil the alkane molecules have remained chemically unchanged for millions of years.
