Question

TRetetences Provide an IUPAC name for each of the compounds shown. (Specify (EY(Z) stereochemistry, if relevant for straight chain alkenes only. Pay attention to commas, dashes, etc.) CH2CH3 CH₃ CH2CH3 CH3CH2CH2 c= H3CH2CH2CH Submit Answer Try Another Version 10 item attempts remaining

Answer 1

-CH2CH3 сна IUPAC name is: 3-ethyl-4-methylcyclopentene Explanation: An ethyl group is located t 3rd position and a methyl group is located at 4th position on cyclopentane ring so the name is 3-ethyl-4-methylcyclopentene H3CH2CH2C CH2CH3 CEO H3CH2CH2C IUPAC name is: 4-propyl-3-heptene Explanation: The number of carbon atoms in the longest carbon chain are 7 so the rootword is hept-. A propyl group is located at 4th position and a double bond is located at 3rd position so the name is 4-propyl- 3-heptene

structure of (E)-2,3,5-trimethyl-3-hexene Explanation: The rootword is hex- so the number of carbon atoms in the longest carbon chain must be 6. Three methyl groups are located at 2,3,5-position and a double bond is located at 3rd position.

1) least stable alkene (highest in energy) is: C

most stable alkene (lowest in energy)  is: B

Explanation: more substituted alkene is most stable and less substituted alkene is least stable. so tetra substituted alkene is more stable and mono substituted alkene is least stable.