Determine whether each of the following is the cis or the trans stereoisomer: 
(c)

Using wedge-and-dash bonds, draw both the cis and trans stereoisomers for each of the following compounds:

(b) 1,3-diethylcyclobutane

For each of the following compounds, indicate whether or not it can exist as cis–trans stereoisomers. If it can exist as the two isomers, draw both as a condensed structure.

(a) H₂C=CHCH₂CH₃

For each of the following compounds, indicate whether or not it can exist as cis–trans stereoisomers. If it can exist as the two isomers, draw both as a condensed structure.

(d)

For each of the following compounds, indicate whether or not it can exist as cis–trans stereoisomers. If it can exist as the two isomers, draw both as a condensed structure.

(c)

Determine whether each of the following is the cis or the trans stereoisomer:

(b)

Are the following compounds structural isomers, cis–trans isomers, or enantiomers?

(c) 

For each pair of molecules, identify the pair as:

A. structural isomers.

B. the same molecule (conformational isomers).

C. cis–trans stereoisomers.

D. different molecules.                                                                                                                                                                 

(b)

The structure of vitamin A is shown in Problem 4.54. Is the double bond nearest the ring on the carbon chain cis or trans?