Question 1

Which of the following compounds have the lowest boiling point?

Accepted Answer

A)  CH3Cl 
B)  CH2Cl2 
C)  CH4 
D)  CHCl3 
E)  CCl4 
A)  CH3Cl 
B)  CH2Cl2 
C)  CH4 
D)  CHCl3 
E)  CCl4 C

Question 2

What is the hybridization state and approximate bond angle around the carbon atom in HCN?

Accepted Answer

A)  sp2, 1200 
B)  sp, 1800 
C)  sp3, 109.50 
D)  sp3, 1200 
E)  sp, 1200 
A)  sp2, 1200 
B)  sp, 1800 
C)  sp3, 109.50 
D)  sp3, 1200 
E)  sp, 1200 B

Question 3

Describe what happens to create a sp3 hybridized orbital.
A. two s electrons are promoted to a p orbital
B. three p electrons are promoted to a s orbital
C. two p electrons are promoted to a s orbital
D. an s electron is promoted to a p orbital
E. a p electron is promoted to a s orbital

Accepted Answer

sigma bonding molecular orbital

Question 4

The following ground state electron configuration violates ____.

Accepted Answer

A)  the Aufbau principle 
B)  the Pauli Exclusion principle 
C)  Hund's Rule 
D)  Heisenberg's Uncertainty principle 
E)  None of these. 
A)  the Aufbau principle 
B)  the Pauli Exclusion principle 
C)  Hund's Rule 
D)  Heisenberg's Uncertainty principle 
E)  None of these.

Question 5

Which of the following best describes the orbitals involved in the formation of the C=O bond in acetone, shown below?

Accepted Answer

A)    
B)    
C)    
D)    
E)    ADVANCE \u 6 
A)    
B)    
C)    
D)    
E)    ADVANCE \u 6

Question 6

Which of the following compounds has a dipole moment? Indicate the direction of the dipole moment.

Accepted Answer

Compound II has no d

Question 7

What is the relationship between the following compounds?

Accepted Answer

A)  resonance isomers 
B)  constitutional isomers 
C)  empirical isomers 
D)  There is no relationship 
A)  resonance isomers 
B)  constitutional isomers 
C)  empirical isomers 
D)  There is no relationship

Question 8

Which of the following is the least electronegative element?

Accepted Answer

A)  P 
B)  N 
C)  Mg 
D)  Si 
E)  K 
A)  P 
B)  N 
C)  Mg 
D)  Si 
E)  K

Question 9

What is the relationship between the following compounds?

Accepted Answer

A)  isotopes 
B)  constitutional isomers 
C)  the same structure 
D)  composed of different elements 
E)  no relationship 
A)  isotopes 
B)  constitutional isomers 
C)  the same structure 
D)  composed of different elements 
E)  no relationship

Question 10

Which of the following compounds has a net dipole moment of zero?

Accepted Answer

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

Question 11

Which of the following compounds have the highest boiling point?

Accepted Answer

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

Question 12

For the following compound identify the polar covalent bonds and indicate the partial charges by using $\delta$+ and $\delta$-.

Accepted Answer

The answer of For the following compound identify the polar...

Question 13

What are the hybridization state, molecular geometry and approximate bond angle at each nitrogen atom in the following compound?

Accepted Answer

N(I): sp², bent, 120⁰

Question 14

Which of the following principle states "When orbitals of equal energy are available, every orbital gets one electron before any gets two electrons"?

Accepted Answer

A)  Aufbau principle 
B)  Pauli exclusion principle 
C)  Hund's Rule 
D)  Heizenberg Uncertainty principle 
E)  Le Chatelier's principle 
A)  Aufbau principle 
B)  Pauli exclusion principle 
C)  Hund's Rule 
D)  Heizenberg Uncertainty principle 
E)  Le Chatelier's principle

Question 15

What is the hybridization state of the oxygen atom in the following compound?

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  sp3d 
E)  s2p 
A)  sp 
B)  sp2 
C)  sp3 
D)  sp3d 
E)  s2p

Question 16

Following is the structure for Propranolol, and antihypertensive drug. What are the hybridization state, molecular geometry and approximate bond angle at the indicated nitrogen and oxygen atom in Propranolol?

Accepted Answer

N: sp³, tri

Question 17

Sugars, an example of which is shown below, tend to be very soluble in water. Explain why.

Accepted Answer

Favorable hydrogen bonding bet

Question 18

For the following compound, identify each bond as polar covalent, nonpolar covalent or ionic and place a $\delta$+ on the most electropositive carbon.

Accepted Answer

The answer of For the following compound, identify each bond...

Question 19

How many pi bonds are present in the following compound?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  five 
A)  one 
B)  two 
C)  three 
D)  four 
E)  five

Question 20

Which of the following principle states that "Each orbital can accommodate a maximum of two electrons with opposite spin"?

Accepted Answer

A)  Aufbau principle 
B)  Pauli exclusion principle 
C)  Hund's Rule 
D)  Heizenberg Uncertainty principle 
E)  Le Chatelier's principle 
A)  Aufbau principle 
B)  Pauli exclusion principle 
C)  Hund's Rule 
D)  Heizenberg Uncertainty principle 
E)  Le Chatelier's principle

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

Which of the following compounds have the lowest boiling point?

What is the hybridization state and approximate bond angle around the carbon atom in HCN?

Describe what happens to create a sp3 hybridized orbital. A. two s electrons are promoted to a p orbital B. three p electrons are promoted to a s orbital C. two p electrons are promoted to a s orbital D. an s electron is promoted to a p orbital E. a p electron is promoted to a s orbital

The following ground state electron configuration violates ____.

Which of the following best describes the orbitals involved in the formation of the C=O bond in acetone, shown below?

Which of the following compounds has a dipole moment? Indicate the direction of the dipole moment.

What is the relationship between the following compounds?

Which of the following is the least electronegative element?

What is the relationship between the following compounds?

Which of the following compounds has a net dipole moment of zero?

Which of the following compounds have the highest boiling point?

For the following compound identify the polar covalent bonds and indicate the partial charges by using δ\deltaδ + and δ\deltaδ -.

What are the hybridization state, molecular geometry and approximate bond angle at each nitrogen atom in the following compound?

Which of the following principle states "When orbitals of equal energy are available, every orbital gets one electron before any gets two electrons"?

What is the hybridization state of the oxygen atom in the following compound?

Following is the structure for Propranolol, and antihypertensive drug. What are the hybridization state, molecular geometry and approximate bond angle at the indicated nitrogen and oxygen atom in Propranolol?

Sugars, an example of which is shown below, tend to be very soluble in water. Explain why.

For the following compound, identify each bond as polar covalent, nonpolar covalent or ionic and place a δ\deltaδ + on the most electropositive carbon.

How many pi bonds are present in the following compound?

Which of the following principle states that "Each orbital can accommodate a maximum of two electrons with opposite spin"?

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

Describe what happens to create a sp³ hybridized orbital. A. two s electrons are promoted to a p orbital B. three p electrons are promoted to a s orbital C. two p electrons are promoted to a s orbital D. an s electron is promoted to a p orbital E. a p electron is promoted to a s orbital

For the following compound identify the polar covalent bonds and indicate the partial charges by using $\delta$ + and $\delta$ -. $For the following compound identify the polar covalent bonds and indicate the partial charges by using \delta + and \delta -.$