Additional Functional H Groups All other functional groups,except ethers and halides have a higher priority than alkynes. For a complete list of naming priorities, look inside the back cover of your text. => Chapter 9 5 Chapter 9 5 Additional Functional Groups • All other functional groups, except ethers and halides have a higher priority than alkynes. • For a complete list of naming priorities, look inside the back cover of your text. =>