Question 1

The bonds indicated by the arrow in the following compound results from the overlap of which orbitals?

Accepted Answer

A)  sp2-sp2 
B)  sp3-sp3 
C)  p-p 
D)  Both A and B 
E)  Both A and C 
A)  sp2-sp2 
B)  sp3-sp3 
C)  p-p 
D)  Both A and B 
E)  Both A and C

Question 2

What is the strongest intermolecular force present in the following compound?

Accepted Answer

A)  ion-dipole interactions 
B)  London dispersion forces 
C)  dipole-dipole interactions 
D)  hydrogen bonding 
E)  covalent bonding 
A)  ion-dipole interactions 
B)  London dispersion forces 
C)  dipole-dipole interactions 
D)  hydrogen bonding 
E)  covalent bonding

Question 3

Which of the following compounds is most soluble in butane, CH3CH2CH2CH3?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  II and III 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  II and III

Question 4

Tryptophan is an essential amino acid important in the synthesis of the neurotransmitter serotonin in the body. What are the hybridization state, molecular geometry and approximate bond angle at the indicated carbon and nitrogen atoms?

Accepted Answer

C(I): sp², trigonal planar, 120

Question 5

Draw the Lewis structure for -CH2CN including formal charges?

Accepted Answer

Question 6

Constructive interference of waves results in_______.

Accepted Answer

A)  a wave with smaller amplitude 
B)  a wave with larger amplitude 
C)  cancellation of both waves 
D)  formation of a node 
E)  Both C and D 
A)  a wave with smaller amplitude 
B)  a wave with larger amplitude 
C)  cancellation of both waves 
D)  formation of a node 
E)  Both C and D

Question 7

What is the hybridization state and approximate bond angle around sulfur in the following compound?

Accepted Answer

A)  sp2, 109.5° 
B)  sp3, 109.5° 
C)  sp3, 107° 
D)  sp3, 1050 
E)  sp2, 1050 
A)  sp2, 109.5° 
B)  sp3, 109.5° 
C)  sp3, 107° 
D)  sp3, 1050 
E)  sp2, 1050

Question 8

Which of the bonding type has circular symmetry with respect to the bond axis?

Accepted Answer

A)  sigma bond 
B)  pi bond 
C)  delta bond 
D)  covalent bond 
E)  ionic bond 
A)  sigma bond 
B)  pi bond 
C)  delta bond 
D)  covalent bond 
E)  ionic bond

Question 9

Draw the Lewis structure for ozone, O3, including formal charges, if any?

Accepted Answer

Question 10

Which of the following is the correct depiction of induction for a C-F bond?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  None of these. 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  None of these.

Question 11

Compare the bond length and strength for the following compounds.

Accepted Answer

A)  the shortest and strongest bond is found in compound I 
B)  the shortest and strongest bond is found in compound II 
C)  the shortest and weakest bond is found in compound I 
D)  the shortest and weakest bond is found in compound II 
E)  the bonds are of identical length and strength 
A)  the shortest and strongest bond is found in compound I 
B)  the shortest and strongest bond is found in compound II 
C)  the shortest and weakest bond is found in compound I 
D)  the shortest and weakest bond is found in compound II 
E)  the bonds are of identical length and strength

Question 12

For soap to remove and dissolve oil in water, what molecular features are needed?

Accepted Answer

A)  one end of the molecule must be polar 
B)  the compound must contain oxygen atoms 
C)  one end of the molecule must be nonpolar 
D)  Both A and C 
E)  All A, B and C 
A)  one end of the molecule must be polar 
B)  the compound must contain oxygen atoms 
C)  one end of the molecule must be nonpolar 
D)  Both A and C 
E)  All A, B and C

Question 13

What is the approximate bond angle around the nitrogen atom?

Accepted Answer

A)  900 
B)  109.50 
C)  1200 
D)  1800 
E)  1000 
A)  900 
B)  109.50 
C)  1200 
D)  1800 
E)  1000

Question 14

What is the correct Lewis structure for COCl2?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 15

What are the formal charges on boron and fluorine in the following structure?

Accepted Answer

A)  B = 1+, N = 1+ 
B)  B = 1+, N = 1- 
C)  B = 1-, N = 1- 
D)  B = 1-, N = 1+ 
E)  B = 1-, N = 0 
A)  B = 1+, N = 1+ 
B)  B = 1+, N = 1- 
C)  B = 1-, N = 1- 
D)  B = 1-, N = 1+ 
E)  B = 1-, N = 0

Question 16

Chemical reactions occur as a result of __________

Accepted Answer

A)  the attraction between opposite charges. 
B)  the nucleus-nucleus interactions. 
C)  the motion of electrons. 
D)  like atoms interacting. 
E)  combining two chemicals. 
A)  the attraction between opposite charges. 
B)  the nucleus-nucleus interactions. 
C)  the motion of electrons. 
D)  like atoms interacting. 
E)  combining two chemicals.

Question 17

The C-H bond in the methyl cation, CH3+, results from the overlap of which orbitals?

Accepted Answer

A)  sp3-sp2 
B)  sp3-sp3 
C)  sp2-s 
D)  sp3-p 
E)  p-s 
A)  sp3-sp2 
B)  sp3-sp3 
C)  sp2-s 
D)  sp3-p 
E)  p-s

Question 18

Which of the following compounds have trigonal pyramidal molecular geometry?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  I and IV 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  I and IV

Question 19

The lone pairs of electrons of the nitrogen atom are located in which orbitals?

Accepted Answer

A)  sp2 
B)  sp3 
C)  sp 
D)  s 
E)  p 
A)  sp2 
B)  sp3 
C)  sp 
D)  s 
E)  p

Question 20

Which of the following compounds have trigonal planar molecular geometry?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  I and IV 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  I and IV

Exam 1: A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

The bonds indicated by the arrow in the following compound results from the overlap of which orbitals?

What is the strongest intermolecular force present in the following compound?

Which of the following compounds is most soluble in butane, CH3CH2CH2CH3?

Tryptophan is an essential amino acid important in the synthesis of the neurotransmitter serotonin in the body. What are the hybridization state, molecular geometry and approximate bond angle at the indicated carbon and nitrogen atoms?

Draw the Lewis structure for -CH2CN including formal charges?

Constructive interference of waves results in_______.

What is the hybridization state and approximate bond angle around sulfur in the following compound?

Which of the bonding type has circular symmetry with respect to the bond axis?

Draw the Lewis structure for ozone, O3, including formal charges, if any?

Which of the following is the correct depiction of induction for a C-F bond?

Compare the bond length and strength for the following compounds.

For soap to remove and dissolve oil in water, what molecular features are needed?

What is the approximate bond angle around the nitrogen atom?

What is the correct Lewis structure for COCl2?

What are the formal charges on boron and fluorine in the following structure?

Chemical reactions occur as a result of __________

The C-H bond in the methyl cation, CH3+, results from the overlap of which orbitals?

Which of the following compounds have trigonal pyramidal molecular geometry?

The lone pairs of electrons of the nitrogen atom are located in which orbitals?

Which of the following compounds have trigonal planar molecular geometry?

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Which of the following compounds is most soluble in butane, CH₃CH₂CH₂CH₃?

Draw the Lewis structure for ^-CH₂CN including formal charges?

Draw the Lewis structure for ozone, O₃_, including formal charges, if any?

What is the correct Lewis structure for COCl₂?

The C-H bond in the methyl cation, CH₃⁺, results from the overlap of which orbitals?