Which arrangement rests in the valley and which perches on the peak?

• Staggered sits low and eclipsed sits high
• Eclipsed sits low and staggered sits high
• Both always sit at equal energy

In a Newman projection, what do the dot and the circle stand for?

• The circle is the near carbon
• The dot is the far carbon
• The dot is near and the circle is far

The cyclohexane chair has its corners alternating up and down.

What does a cyclohexane ring flip do to the positions?

• It flattens the ring for good
• It breaks one carbon bond briefly
• It swaps every axial with an equatorial

Which butane minimum sits lowest?

• Gauche, with the methyls side by side
• Anti, with the methyls opposite
• Eclipsed, with the methyls aligned

Methylcyclohexane flips between two chairs. Which one wins?

• The chair with methyl equatorial
• The chair with methyl axial
• Both chairs equally, by symmetry

Can you bottle the gauche form of butane like a separate compound?

• No, conformations interconvert in a flash
• Yes, freezing always works
• Yes, if you cool below zero

A student labels the butane profile with gauche below anti. Which statement about the true profile is correct?

• Anti is a valley and eclipsed is a peak
• Gauche sits lower than anti
• Eclipsed methyls aligned are the lowest valley