CHM 2201 Chapter 6 Sample Exam

Chapter 6: Alkenes: Structure and Reactivity

Part A: Degree of Unsaturation 10 Points

Calculate the degree of unsaturation for the following formulas. For one or two problems below show variations with suggested isomer structures:

(1) C₄₀H₅₆ (β-carotene)

(2) C₄H₆

(3) C₆H₅N

(4) C₆H₅NO₂ (oxygens are not double bonded)

(5) C₈H₉Cl₃

(6) C₅H₆

(7) C₉H₁₆Br₂

(8) C₂₀H₃₂ClN

(9) C₃H₄

(10) C₆H₉N