Which of the following two stick structures are different conformations of the same molecule?
A) a and c
B) b and c
C) a and d
D) b and d
E) none of the above
Question 2
Which of the following molecules would probably be isolated closest to the bottom of a fractionating tower at a refinery?
A) C4H10
B) C8H18
C) C10H22
D) C20H42
E) C40H82