Chiral Molecule & Isomers Quiz – Chemistry

Chiral Molecule & Isomers Quiz

This Chemistry discussion is based on Achiral and Chiral Molecule & Isomers Quiz.

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Question 1

Is the following molecule chiral or achiral?

chiral – Correct

achiral

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Question 2

Is the following molecule chiral or achiral?

chiral – Correct

achiral

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Question 3

How many chiral centers are in the molecule below?

Correct Answers

2 (with margin: 0)

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Question 4

How many chiral centers are in the molecule below?

Correct Answers

0 (with margin: 0)

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Question 5

The formula to determine the number of possible isomers of a stereocompound is 2ⁿ where n = # of chiral centers. If a molecule has three chiral centers, how many stereoisomers are possible?

Correct Answers

8 (with margin: 0)

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Question 6

In the following molecule, which carbons are chiral?

1

2 – correct

3 – correct

4 – correct

5

6

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Question 7

Of the following, which group has the lowest priority?

–H – correct

-OH

-CH₂CH₃

-CH₂CH₂OH

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Question 8

Is the molecule below R or S?

R

S – correct

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Question 9

Is the molecule below R or S?

R

S – correct

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Question 10

Is the following molecule R or S?

R – correct

S

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Question 11

Is the following molecule R or S?

R

S – correct

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Question 12

Is the following molecule R or S?

R – correct

S

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Question 13

Is the following molecule R or S?

R

S – correct

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Question 14

Is the indicated chiral center R or S?

R

S – correct

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Question 15

Are the two molecules below the same molecule or different molecules?

Same

Different – correct

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Question 16

Which of the following represent identical molecules?

A and B – correct

A and C

B and C

All are the same

All are different

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Question 17

Is the following molecule a meso compound?

yes

no – correct

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Question 18

Identify the enantiomer(s) of the molecule below.

A – correct

B

C

A and B

B and C

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Question 19

Identify the diastereomer(s) of the molecule below.

A

B

C

A and B – correct

B and C

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Question 20

What is the name of the following molecule?

(2S, 3R)-2-chloro-3-methylpentane – correct

(2R, 3R)-2-chloro-3-methylpentane

(3R, 4S)-4-chloro-3-methylpentane

(3R, 4R)-4-chloro-3-methylpentane

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Question 21

What is the common name of the compound below?

aniline – correct

phenol

nitrobenzene

styrene

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Question 22

What is the common name of the compound below?

benzoic acid – correct

acetophenone

toluene

benzaldehyde

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Question 23

Identify the following as ortho-, meta-, or para- substituted.

ortho-

meta- – correct

para-

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Question 24

Identify the following as ortho-, meta-, or para- substituted.

ortho-

meta-

para- – correct

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Question 25

Select the correct IUPAC name for the compound below.

o-dichlorobenzene – correct

m-dichlorobenzene

m-dichlorocyclobenene

o-dichlorocyclobenzene

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Question 26

Which of the following is another accepted name for p-chloroaniline?

4-chloroaniline – correct

p-chloronitrobenzene

4-chloro-1-nitroaniline

1-chloro-4-nitroaniline

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Question 27

Which of the following is not an acceptable name for the structure below?

m-chloroxylene – correct

m-chlorotoluene

3-chlorotoluene

1-chloro-3-methylbenzene

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Question 28

Which of the following is the most reactive?

A – correct

B

C

D

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Question 29

Which of the following is the most reactive?

A

B – correct

C

D

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Question 30

Which of the following is the least reactive?

A

B

C – correct

D

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Question 31

To what position will the following molecule direct?

ortho-

meta- – correct

para-

ortho- and para-

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Question 32

To what position will the following molecule direct?

ortho-

meta-

para-

ortho- and para- – correct

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Question 33

A – correct

B

C

D

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Question 34

A

B – correct

C

D

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Question 35

Which of the following will be the major product(s)?

A

B – correct

C

A and B

A and C

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Question 36

Which of the following will be the major product(s)?

A

B – correct

C

A and B

A and C

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Question 37

Which of the following will be the major product(s)?

A

B

C

A and B

A and C – correct

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Question 38

How would the following synthesis take place, assuming o, m, and p isomers can be isolated?

CB – correct

BC

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Question 39

How would the following synthesis take place, assuming o, m, and p isomers can be isolated?

EA

GA – correct

AE

AG

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Question 40

How would the following synthesis take place, assuming o,m, and p isomers can be isolated?

EGD – correct

FGD

DGF

FDG

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