Chem 219 Quiz 3 : Questions With Complete Solutions

Chem 219 quiz 3

1. Characterize each of the following objects as being chiral or achiral:

a. Pencil
b. Wine Glass
c. Baseball Glove
d. Orchestra Conductors' Baton
e. Scissors: a. achiral
b. achiral
c. chiral
d. achiral
e. chiral
2. Draw each of the following structures on a piece of paper. Identify any stereo
centers in each indication the carbon number corresponding to a stereo
center. If there are no stereo centers in a compound state none

a. 1,2-dimethycyclohexane
b. 2,3,4-trimethylhexane
c. 1-bromo-1,2-dichloropropane: a. stereocenters at C1 and C2
b. stereocenters at C3 and C4
3. Question 2 part 2: 2,2 dichloropropane, 1,2 dichloroputane, 2 methylhexa-
ne: a. none
b. one stereocenter at C2
c. one stereo center at C2
4. Assign priority order (1-4; is greatest priority) to the following four groups
for the purpose of deterring R and S configurations at a stereocenter: i. 3, 1,
2, 4
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, Chem 219 quiz 3

ii. 4, 3, 2, 1
5. Based on the direction of twist of the following groups, assign an R or S
orientation: S orientation
R orientation
R orientation
6. question 4 part 2: S orientation
R orientation
S orientation
7. The Fischer projection formula of the molecule fructose is show n below.
How many stereocenters are present in the fructose molecule? Wh
-at is the




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