Cycloalkanes with __________ or more carbons in the ring are ...

[kodithompson]

Cycloalkanes with __________ or more carbons in the ring are nonplanar.
  A)
  2
  B)
  3
  C)
  4
  D)
  5
  E)
  6

Question 2

Consider this chair conformation:
   
   
   
  A)
  The methyl and bromine are cis and the chlorine and bromine are cis.
  B)
  The methyl and bromine are trans and the chlorine and bromine are cis.
  C)
  The methyl and chlorine are trans and the methyl and bromine are cis.
  D)
  The methyl and chlorine are trans and the methyl and bromine are trans.
  E)
  The methyl and chlorine are trans and the bromine and chlorine are cis.

Question 3

Consider this chair conformation:
   
   
   
   
  When the ring flips,
  A)
  the bromine becomes axial and the methyls become equatorial.
  B)
  all three substituents become equatorial.
  C)
  the bromine becomes equatorial and the methyls become axial.
  D)
  the ring opens up.
  E)
  one methyl becomes axial, one becomes equatorial, and the bromine becomes equatorial.

Question 4

Which of the following pairs are examples of conformational isomerism?
  A)
  chair and boat forms of cyclohexane
  B)
  1-iodopropane and 2-iodopropane
  C)
  sec-butyl chloride and butyl iodide
  D)
  cis and trans-1,2-dimethylcyclohexane
  E)
  all of these

[Animal_Goddess]

Answer to Question 1

c

Answer to Question 2

a

Answer to Question 3

c

Answer to Question 4

a