Question 1

The bonding pattern of oxygen with a formal charge of -1 could be described as _____.

Accepted Answer

A)  one lone pair of electrons and three single bonds 
B)  two lone pairs of electrons and two single bonds 
C)  three lone pairs of electrons, and one single bond 
D)  one lone pair of electrons, one single, and one double bond 
E)  zero lone pairs, and two single and one double bond 
A)  one lone pair of electrons and three single bonds 
B)  two lone pairs of electrons and two single bonds 
C)  three lone pairs of electrons, and one single bond 
D)  one lone pair of electrons, one single, and one double bond 
E)  zero lone pairs, and two single and one double bond

Question 2

What is the formal charge on oxygen in the following structure?

Accepted Answer

A)  0 
B)  1+ 
C)  2+ 
D)  1- 
E)  2- 
A)  0 
B)  1+ 
C)  2+ 
D)  1- 
E)  2-

Question 3

Constitutional isomers do not differ in ____________.

Accepted Answer

A)  physical properties 
B)  atomic connectivity 
C)  molecular formula 
D)  name 
E)  constitution 
A)  physical properties 
B)  atomic connectivity 
C)  molecular formula 
D)  name 
E)  constitution

Question 4

What are the hybridization state, molecular geometry and approximate bond angle for the methyl anion, CH3-?

Accepted Answer

A)  sp2, tetrahedral, 1090 
B)  sp2, trigonal planar, 1200 
C)  sp3, tetrahedral, 109.50 
D)  sp3, trigonal pyramidal, 0 
E)  sp2, trigonal pyramidal, 1800 
A)  sp2, tetrahedral, 1090 
B)  sp2, trigonal planar, 1200 
C)  sp3, tetrahedral, 109.50 
D)  sp3, trigonal pyramidal, 0 
E)  sp2, trigonal pyramidal, 1800

Question 5

What is the formal charge on oxygen in the following structure?

Accepted Answer

A)  2+ 
B)  2- 
C)  1+ 
D)  1- 
E)  0 
A)  2+ 
B)  2- 
C)  1+ 
D)  1- 
E)  0

Question 6

What are the hybridization state, molecular geometry and approximate bond angle for the methyl cation, CH3+?

Accepted Answer

A)  sp2, tetrahedral, 1090 
B)  sp2, trigonal planar, 1200 
C)  sp3, tetrahedral, 109.50 
D)  sp3, trigonal pyramidal, 1200 
E)  sp2, trigonal pyramidal, 1800 
A)  sp2, tetrahedral, 1090 
B)  sp2, trigonal planar, 1200 
C)  sp3, tetrahedral, 109.50 
D)  sp3, trigonal pyramidal, 1200 
E)  sp2, trigonal pyramidal, 1800

Question 7

What is the electronic configuration for the oxide ion?

Accepted Answer

A)  1s2 2s2 2p6 
B)  1s2 2s2 2p2 
C)  1s2 2s22p4 
D)  1s2 2s02p6 
E)  1s2 2s2 2p63s22p2 
A)  1s2 2s2 2p6 
B)  1s2 2s2 2p2 
C)  1s2 2s22p4 
D)  1s2 2s02p6 
E)  1s2 2s2 2p63s22p2

Question 8

Rank the following compounds in order of decreasing dipole moment.

Accepted Answer

A)  I > II > III 
B)  II > III > I 
C)  I > III > II 
D)  III > II > I 
E)  II > I > III 
A)  I > II > III 
B)  II > III > I 
C)  I > III > II 
D)  III > II > I 
E)  II > I > III

Question 9

Draw three constitutional isomers that have molecular formula C4H8BrCl

Accepted Answer

@#IMG-DLM&_TB4454_00

Question 10

From the following, identify the item which does not contain organic compounds.

Accepted Answer

A)  medicine 
B)  socks 
C)  a plant 
D)  a coin 
E)  a plastic cup 
A)  medicine 
B)  socks 
C)  a plant 
D)  a coin 
E)  a plastic cup

Question 11

What is the formal charge on oxygen in the following structure?

Accepted Answer

A)  2- 
B)  1- 
C)  2+ 
D)  1+ 
E)  0 
A)  2- 
B)  1- 
C)  2+ 
D)  1+ 
E)  0

Question 12

What is the correct order of increasing electronegativity for Rb, F and O?

Accepted Answer

A)  Rb < F < O 
B)  Rb < O < F 
C)  O < F < Rb 
D)  F < Rb < O 
E)  None of these 
A)  Rb < F < O 
B)  Rb < O < F 
C)  O < F < Rb 
D)  F < Rb < O 
E)  None of these

Question 13

BF3 has a no dipole moment. Draw the Lewis structure for BF3, showing all nonbonding electrons. Indicate the polarity of every atom in the structure using δ+ and δ- notation. Explain why the molecule has no net dipole.

Accepted Answer

@#IMG-DLM&_TB4454_00 The trigonal planar

Question 14

The difference between valence bond theory and molecular orbital (MO) theory is _____.

Accepted Answer

A)  valence bond theory requires the linear combination of atomic orbitals 
B)  MO theory requires the linear combination of atomic orbitals 
C)  valence bond theory considers only individual atomic orbitals 
D)  Both A and B 
E)  Both B and C 
A)  valence bond theory requires the linear combination of atomic orbitals 
B)  MO theory requires the linear combination of atomic orbitals 
C)  valence bond theory considers only individual atomic orbitals 
D)  Both A and B 
E)  Both B and C

Question 15

Which of the following is the most electronegative element?

Accepted Answer

A)  B 
B)  C 
C)  N 
D)  O 
E)  H 
A)  B 
B)  C 
C)  N 
D)  O 
E)  H

Question 16

Orbitals with the same energy are called ___________.

Accepted Answer

A)  quantum orbitals 
B)  atomic orbitals 
C)  antibonding orbitals 
D)  bonding orbitals 
E)  degenerate orbitals 
A)  quantum orbitals 
B)  atomic orbitals 
C)  antibonding orbitals 
D)  bonding orbitals 
E)  degenerate orbitals

Question 17

What is the molecular geometry at the central atom in Cl2CO?

Accepted Answer

A)  trigonal planar 
B)  trigonal pyramidal 
C)  square planar 
D)  tetrahedral 
E)  bent 
A)  trigonal planar 
B)  trigonal pyramidal 
C)  square planar 
D)  tetrahedral 
E)  bent

Question 18

The bond between carbon and hydrogen is best described as ___________.

Accepted Answer

A)  nonpolar covalent 
B)  polar covalent 
C)  ionic 
D)  coordinate covalent 
E)  None of these. 
A)  nonpolar covalent 
B)  polar covalent 
C)  ionic 
D)  coordinate covalent 
E)  None of these.

Question 19

Amino acids are the building blocks of proteins. Which statement best describes the physical properties of the following amino acid?

Accepted Answer

A)  high melting points and low solubility in water 
B)  large dipole moments and no hydrogen bonding 
C)  high melting points and large dipole moments 
D)  low solubility in water and small dipole moments 
E)  small dipole moments and are hydrophobic 
A)  high melting points and low solubility in water 
B)  large dipole moments and no hydrogen bonding 
C)  high melting points and large dipole moments 
D)  low solubility in water and small dipole moments 
E)  small dipole moments and are hydrophobic

Question 20

What is the correct Lewis structure for PH3?

Accepted Answer

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

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

The bonding pattern of oxygen with a formal charge of -1 could be described as _____.

What is the formal charge on oxygen in the following structure?

Constitutional isomers do not differ in ____________.

What are the hybridization state, molecular geometry and approximate bond angle for the methyl anion, CH3-?

What is the formal charge on oxygen in the following structure?

What are the hybridization state, molecular geometry and approximate bond angle for the methyl cation, CH3+?

What is the electronic configuration for the oxide ion?

Rank the following compounds in order of decreasing dipole moment.

Draw three constitutional isomers that have molecular formula C4H8BrCl

From the following, identify the item which does not contain organic compounds.

What is the formal charge on oxygen in the following structure?

What is the correct order of increasing electronegativity for Rb, F and O?

BF3 has a no dipole moment. Draw the Lewis structure for BF3, showing all nonbonding electrons. Indicate the polarity of every atom in the structure using δ+ and δ- notation. Explain why the molecule has no net dipole.

The difference between valence bond theory and molecular orbital (MO) theory is _____.

Which of the following is the most electronegative element?

Orbitals with the same energy are called ___________.

What is the molecular geometry at the central atom in Cl2CO?

The bond between carbon and hydrogen is best described as ___________.

Amino acids are the building blocks of proteins. Which statement best describes the physical properties of the following amino acid?

What is the correct Lewis structure for PH3?

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

What are the hybridization state, molecular geometry and approximate bond angle for the methyl anion, CH₃^-?

What are the hybridization state, molecular geometry and approximate bond angle for the methyl cation, CH₃⁺?

Draw three constitutional isomers that have molecular formula C₄H₈BrCl

BF₃ has a no dipole moment. Draw the Lewis structure for BF₃, showing all nonbonding electrons. Indicate the polarity of every atom in the structure using δ+ and δ- notation. Explain why the molecule has no net dipole.

What is the molecular geometry at the central atom in Cl₂CO?

What is the correct Lewis structure for PH₃?