Chapter Two
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Easy
1. What is the molecular formula for the following compound?
H H H H
H C C O C C H
H H H H
A) C2H6O
B) C4H6O
C) C4H10O
D) C2H4O
E) None of th ese
Ans: C
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Easy
2. Which of the following compounds have a molecular formula of C2H6O?
CH3OCH3 CH3CH2OCH3 CH3CH2OH CH3CHOHCH3
I II III IV
A) I
B) II
C) III
D) IV
E) Both I & III
Ans: E
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Easy
, 3. Which of the following is the correct condensed structure for the following compound?
H H H H
C C H
H C O
H C H
A) H H
CH3CH3CH2OH B)
CH3CH2CH2OH C)
(CH3)2CHCH2OH
D) CH3CH2CH2OCH3
E) CH3C2H3CH3OH
Ans: C
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Easy
4. Which of the following is the correct condensed structure for the following compound?
H H H H Cl H
H C C C C C C H
H O H H H H
H
A) CH3CHOHCH2CHClCH3
B) CH3CHOH(CH2)2CHClCH3
C) (CH3)2CHOHCH2CH2Cl
D) CH3CHCH2CH2OHCH3CHCl
E) CH3C2H4CH3OHCl
Ans: B
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Medium
, 5. Which of the following is the correct condensed structure for the following compound?
A) CH2=CH(CH2)3C(CH3)3
B) CH(CH2)4C(CH3)3
C) (CH3)2CH(CH2)4CH3
D) CH2CH(CH2)3C(CH3)3
E) (CH)3(CH2)3C(CH3)3
Ans: A
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Medium
6. Which of the following is the correct condensed structure for the following compound?
H
H H
H H H H C H
H C C C C C C C C H
H H H H H
H H
A) CH C (CH ) C(CH )
3 2 2 3 3 3
B) CH3CC(CH2)3C(CH3)2CH3
C) (CH3)3C2(CH2)3CH3
D) CH3CC(CH2)3C(CH3)3
E) CH3CC(CH2)3C(CH3)3
Ans: D
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Medium
, 7. Which of the following is the correct condensed structure for the following compound?
H H
H H H H
H H H H H
H C C C C C C C H
H C H H Br H H
H
H
H
A) CH3C(CH3)2(CH2)2(CH)BrC(CH3)2
B) CH3CH3CH3C(CH2)2C(CH3)2CHBr
C) (CH3)3C(CH2)3BrCHCH3CH3
D) CH3CH3CH3C(CH2)2CHBrCHCH3CH3
E) (CH3)3C(CH2)2CHBrCH(CH3)2
Ans: E
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Hard
8. Provide correct condensed structure for the following compound.
H
H H
H C
H H H H
H H H H H
H C C C C O C C C H
H C H H H H H
H
H
H
Ans: (CH3)3C(CH2)2OCH(CH2CH3)2
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Hard
9. Provide correct condensed structure for the following compound.
H
H H
H H H H H
H C N C C C C C H
H C H H H H H
H
H
H
Ans: (CH3)2N(CH2)3CH(CH3)2
Topic: Molecular Representation
Section: 2.1
Difficulty Level: Easy