Propose a structure for CsH& First calculate the number of elements of unsaturation Remember: >a double bond is one element of unsaturation a ring is one element of unsaturation >A triple bond is two elements of unsaturation.=> Chapter 7Chapter 7 7 Propose a Structure: • First calculate the number of elements of unsaturation. • Remember: ➢A double bond is one element of unsaturation. ➢A ring is one element of unsaturation. ➢A triple bond is two elements of unsaturation. => for C5H8