5013

Name each of the following compounds and include the Z or E stereochemical designation if it is appropriate.

(a)

(b)

5014

Draw the structural formulas for the geometrical isomers of each of the following compounds:

(a) 1,2-dibromoethene

(b) 4-methyl-3-hexene-1-ol

5076

Predict the preferred conformation of the isomeric (E and Z) pent-3-en-2-ones with R = CH₃. How would you expect the conformational picture to change as R becomes successively larger?

5212

Draw the complete structural formulas of all isomers of

(a) C₄H₁₀

(b) C₄H₈

5296

Draw any acceptable type of structural formula to represent all of the possible isomers of

(a) C₅H₁₂

(b) C₅H₁₀