Draw the structural formulas for cis- and trans-1,3-dibromocyclobutane. Using the prefix cis- or trans-, name each of the following:
a. CH₂CH₃
b. CH₃
c. CH₃
d. CH₃

For each of the following molecular formulas, give the requested structural formulas:
a. C₆H₁₄, a normal alkane
b. C₆H₁₄, a branched alkane
c. C5H12, a pair of conformations
d. C5H12, a pair of structural isomers
e. C5H10, a cyclic hydrocarbon
f. C6H12, two cycloalkane geometric isomers
g. C6H12, a cycloalkane that has no geometric isomers.

Cycloalkanes (Section 11.8) 11.43