For rotation about the C-3—C-4 bond of 2-methylhexane, do the following:

For rotation about the C-3—C-4 bond of 2-methylhexane, do the following:

a. Draw the Newman projection of the most stable conformer.
b. Draw the Newman projection of the least stable conformer.
c. About which other carbon–carbon bonds may rotation occur?
d. How many of the carbon–carbon bonds in the compound have staggered conformers that are all equally stable?