Question 1

Which of the following statements is not true about the carbonate anion, CO32-?

Accepted Answer

A)  All of the oxygen atoms bear the same amount of charge 
B)  All of the carbon-oxygen bonds are the same length 
C)  The carbon atom bears the negative charge 
D)  It is basic 
A)  All of the oxygen atoms bear the same amount of charge 
B)  All of the carbon-oxygen bonds are the same length 
C)  The carbon atom bears the negative charge 
D)  It is basic

Question 2

What is the approximate strength of the C-C bond of ethane?

Accepted Answer

A)  376 kJ/mol (90 kcal./mol) 
B)  422 kJ/mol (101 kcal./mol) 
C)  556 kJ/mol (133 kcal./mol) 
D)  727 kJ/mol (174 kcal./mol) 
A)  376 kJ/mol (90 kcal./mol) 
B)  422 kJ/mol (101 kcal./mol) 
C)  556 kJ/mol (133 kcal./mol) 
D)  727 kJ/mol (174 kcal./mol)

Question 3

Which of the following is a polar covalent bond?

Accepted Answer

A)  Na-F 
B)  C-H 
C)  C-O 
D)  Cl-Cl 
A)  Na-F 
B)  C-H 
C)  C-O 
D)  Cl-Cl

Question 4

Circle and name the functional groups in the following molecule.

Accepted Answer

The answer of Circle and name the functional groups in...

Question 5

Circle all of the sp hybridized atoms in the following molecular structure.

Accepted Answer

The answer of Circle all of the sp hybridized atoms...

Question 6

What is the approximate value of the length of the C=C bond in ethane, CH2=CH2?

Accepted Answer

A)  121 pm 
B)  134 pm 
C)  142 pm 
D)  154 pm 
A)  121 pm 
B)  134 pm 
C)  142 pm 
D)  154 pm

Question 7

Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH3COO-?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 8

Which of the following molecules has a molecular dipole?

Accepted Answer

A)  CO2 
B)  BF3 
C)  NH3 
D)  CH4 
A)  CO2 
B)  BF3 
C)  NH3 
D)  CH4

Question 9

Draw bond-line structures of all of the alkanes that have the formula C5H12.

Accepted Answer

Question 10

How many electrons are there in the valence shell of the nitrogen atom of ammonia?

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  8 
A)  4 
B)  5 
C)  6 
D)  8

Question 11

Circle all of the sp2 hybridized atoms in the following molecular structure.

Accepted Answer

Question 12

What is the approximate C-C-C bond angle in propene, CH3CH=CH2?

Accepted Answer

A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$ 
A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$

Question 13

Which of the following is a primary (1$\degree$) amine?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 14

Which of the following compounds is an aldehyde?

Accepted Answer

A)  CH3CH2CH2COOH 
B)  CH3CH2CHO 
C)  CH3CH2CH2OH 
D)  CH3CH2COCH3 
A)  CH3CH2CH2COOH 
B)  CH3CH2CHO 
C)  CH3CH2CH2OH 
D)  CH3CH2COCH3

Question 15

What is the approximate H-C-O bond angle in formaldehyde, H2C=O?

Accepted Answer

A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$ 
A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$

Question 16

Which of the following molecules is not linear?

Accepted Answer

A)  H2O 
B)  CO2 
C)  HCºCH 
D)  Cl2 
A)  H2O 
B)  CO2 
C)  HCºCH 
D)  Cl2

Question 17

Which of the following statements is not true about the acetate anion, CH3CO2-?

Accepted Answer

A)  The oxygen atoms bear the same amount of charge 
B)  The two carbon-oxygen bonds are the same length 
C)  The carbon atom bears the negative charge 
D)  It is basic 
A)  The oxygen atoms bear the same amount of charge 
B)  The two carbon-oxygen bonds are the same length 
C)  The carbon atom bears the negative charge 
D)  It is basic

Question 18

What is the approximate C-C-C bond angle in propyne, HCºCCH3?

Accepted Answer

A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$ 
A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$

Question 19

Draw bond-line structures of all of the secondary (2$\degree$) amines that have the formula C4H9N.

Accepted Answer

Question 20

How many electrons are there in the valence shell of the oxygen atom of water?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Exam 1: Covalent Bonding and Shapes of Molecules

Which of the following statements is not true about the carbonate anion, CO32-?

What is the approximate strength of the C-C bond of ethane?

Which of the following is a polar covalent bond?

Circle and name the functional groups in the following molecule.

Circle all of the sp hybridized atoms in the following molecular structure.

What is the approximate value of the length of the C=C bond in ethane, CH2=CH2?

Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH3COO-?

Which of the following molecules has a molecular dipole?

Draw bond-line structures of all of the alkanes that have the formula C5H12.

How many electrons are there in the valence shell of the nitrogen atom of ammonia?

Circle all of the sp2 hybridized atoms in the following molecular structure.

What is the approximate C-C-C bond angle in propene, CH3CH=CH2?

Which of the following is a primary (1 °\degree° ) amine?

Which of the following compounds is an aldehyde?

What is the approximate H-C-O bond angle in formaldehyde, H2C=O?

Which of the following molecules is not linear?

Which of the following statements is not true about the acetate anion, CH3CO2-?

What is the approximate C-C-C bond angle in propyne, HCºCCH3?

Draw bond-line structures of all of the secondary (2 °\degree° ) amines that have the formula C4H9N.

How many electrons are there in the valence shell of the oxygen atom of water?

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Filters

Which of the following statements is not true about the carbonate anion, CO₃^2-?

What is the approximate value of the length of the C=C bond in ethane, CH₂=CH₂?

Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH₃COO^-?

Draw bond-line structures of all of the alkanes that have the formula C₅H₁₂.

Circle all of the sp² hybridized atoms in the following molecular structure.

What is the approximate C-C-C bond angle in propene, CH₃CH=CH₂?

Which of the following is a primary (1 $\degree$ ) amine? $Which of the following is a primary (1 \degree ) amine?$

What is the approximate H-C-O bond angle in formaldehyde, H₂C=O?

Which of the following statements is not true about the acetate anion, CH₃CO₂^-?

What is the approximate C-C-C bond angle in propyne, HCºCCH₃?

Draw bond-line structures of all of the secondary (2 $\degree$ ) amines that have the formula C₄H₉N.