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Enantiomers VS. Diastereomers

Total questions: 16

Worksheet time: 52mins

Name
Class
Date
1.

Label this pair of stereoisomers as:

a)

enantiomers

b)

diastereomers

c)

identical

2.

Label this pair of stereoisomers as:

a)

enantiomers

b)

diastereomers

c)

identical

3.

_____ are stereoisomers that are not mirror images.

a)

optically active

b)

meso compounds

c)

racemates

d)

achiral

e)

diastereomers

4.

Label this pair of stereoisomers as:

a)

enantiomers

b)

diastereomers

c)

identical

5.

What kind of stereoisomer that is superimposable ?

a)

isomer

b)

diastereomer

c)

enantiomer

d)

epimer

6.

This figure relate to

a)

Enantiomers

b)

Diastereomers

7.

The molecules shown are ?

a)

Constitutional isomers

b)

Identical

c)

Enantiomers

d)

Diastreomers

8.

How many stereogenic (chiral) centers are there in the Lovastatin ( Mevacor : a cholestrol lowering drug) ?

a)

5

b)

6

c)

7

d)

8

9.

How many chirality centers are there?

a)

1

b)

2

c)

0

d)

3

e)

4

10.

Label this pair of stereoisomers as:

a)

enantiomers

b)

diastereomers

c)

identical

11.

There are two main forms of isomerism, which are?

a)

Structural isomerism and Stereoisomerism

b)

Stereoisomerism and Physical isomerism

c)

Chemical isomerism and Stereoisomerism

d)

Structural isomers and Geometric Isomers

12.

_____ is an atom in a molecule that is bonded to four different atoms or groups of atoms.

a)

optically active

b)

meso compounds

c)

racemates

d)

prochirality center

e)

chirality center

13.

In a stereoisomer, ________ means "on the same side" and ______ means "across from."

a)

cis; trans

b)

cis; L

c)

D; L

d)

trans; cis

14.

What property can be assigned to a carbon atom that has four different atoms or structural groups attached to it?

a)

isomerity

b)

chirality

c)

chivalry

d)

geometry

15.

Which of the following would be a diastereomer of the compound? Check all that apply

a)

2R, 3R, 4R

b)

2S, 3S, 4R

c)

2R, 3R, 4S

d)

2S, 3S, 4S

e)

2S, 3R, 4S

16.

Which of the following would be a enantiomer of the compound? Check all that apply

a)

2R, 3R, 4R

b)

2S, 3S, 4R

c)

2R, 3R, 4S

d)

2S, 3S, 4S

e)

2S, 3R, 4S