Question 1

Draw the intermediate of the following reaction.

Accepted Answer

The answer of Draw the intermediate of the following reaction....

Question 2

Which Lewis structures are correct?
HINT: Perform a total valence count and check formal charges.

Accepted Answer

A)  I, II 
B)  II, IV 
C)  III, IV 
D)  I, III 
A)  I, II 
B)  II, IV 
C)  III, IV 
D)  I, III

Question 3

Using Markovnikov's rule, predict the position of the Cl atom in the major product from the reaction of 1-methylcyclohexene with HCl.

Accepted Answer

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

Question 4

Which statement about contributing structures is false?

Accepted Answer

A)  All contributing structures must have the same number of valence electrons. 
B)  All contributing structures must obey the rules of covalent bonding. 
C)  The position of nuclei may change. 
D)  Third period atoms may have up to 18 electrons around them. 
A)  All contributing structures must have the same number of valence electrons. 
B)  All contributing structures must obey the rules of covalent bonding. 
C)  The position of nuclei may change. 
D)  Third period atoms may have up to 18 electrons around them.

Question 5

Which of the three molecules aspirin, paracetamol and ibuprofen contains a carboxyl group?

Accepted Answer

A)  I 
B)  I, III 
C)  II,III 
D)  I, II, III 
A)  I 
B)  I, III 
C)  II,III 
D)  I, II, III

Question 6

Using the VSEPR model, predict which molecules have bond angles of about 120°.

Accepted Answer

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

Question 7

The following carbocations are listed in increasing order of stability (least tofirst).

Accepted Answer

A) True 
 B)False

Question 8

The hydroboration and subsequent oxidation of 1-heptene leads to which of the following products?

Accepted Answer

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

Question 9

But-1-yn-1-ylcyclohexane reacts with molecular hydrogen under pressure in the presence of a Lindlar catalyst. What reaction product is formed?

Accepted Answer

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

Question 10

Which species are electrophiles?

Accepted Answer

A)  II, III 
B)  II, IV 
C)  I, IV 
D)  I, III 
A)  II, III 
B)  II, IV 
C)  I, IV 
D)  I, III

Question 11

According to VSEPR model, what is your prediction for the arrangement of electron pairs for CH3-?

Accepted Answer

A)  linear 
B)  tetrahedral 
C)  bent 
D)  trigonal 
A)  linear 
B)  tetrahedral 
C)  bent 
D)  trigonal

Question 12

Which one represents the activation energy?

Accepted Answer

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

Question 13

The following molecule contains the _________ and __________ functional groups.

Accepted Answer

hydroxyl a

Question 14

Using the VSEPR model, predict which species have bond angles of about 109°.
HINT: Assume that the charges are correct. Add the missing lone pairs before applying the VSEPR theory!

Accepted Answer

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

Draw the intermediate of the following reaction.

Which Lewis structures are correct? HINT: Perform a total valence count and check formal charges.

Using Markovnikov's rule, predict the position of the Cl atom in the major product from the reaction of 1-methylcyclohexene with HCl.

Which statement about contributing structures is false?

Which of the three molecules aspirin, paracetamol and ibuprofen contains a carboxyl group?

Using the VSEPR model, predict which molecules have bond angles of about 120°.

The following carbocations are listed in increasing order of stability (least tofirst).

The hydroboration and subsequent oxidation of 1-heptene leads to which of the following products?

But-1-yn-1-ylcyclohexane reacts with molecular hydrogen under pressure in the presence of a Lindlar catalyst. What reaction product is formed?

Which species are electrophiles?

According to VSEPR model, what is your prediction for the arrangement of electron pairs for CH₃^-?

Which one represents the activation energy?

The following molecule contains the _ and __ functional groups.

Using the VSEPR model, predict which species have bond angles of about 109°. HINT: Assume that the charges are correct. Add the missing lone pairs before applying the VSEPR theory!

Acids and Bases

Alkanes and Cycloalkanes

Alkenes and Alkynes

Chirality: the Handedness of Molecules

Haloalkanes

Alcohols, Ethers, and Thiols

Benzene and Its Derivatives

Amines

Infrared and Nuclear Magnetic Resonance Spectroscopy

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions

Organic Polymer Chemistry

Carbohydrates

Amino Acids and Proteins

Lipids

Nucleic Acids

The Organic Chemistry of Metabolism

Filters

Exam 1: Covalent Bonding and Shapes of Molecules

Draw the intermediate of the following reaction.

Which Lewis structures are correct? HINT: Perform a total valence count and check formal charges.

Using Markovnikov's rule, predict the position of the Cl atom in the major product from the reaction of 1-methylcyclohexene with HCl.

Which statement about contributing structures is false?

Which of the three molecules aspirin, paracetamol and ibuprofen contains a carboxyl group?

Using the VSEPR model, predict which molecules have bond angles of about 120°.

The following carbocations are listed in increasing order of stability (least tofirst).

The hydroboration and subsequent oxidation of 1-heptene leads to which of the following products?

But-1-yn-1-ylcyclohexane reacts with molecular hydrogen under pressure in the presence of a Lindlar catalyst. What reaction product is formed?

Which species are electrophiles?

According to VSEPR model, what is your prediction for the arrangement of electron pairs for CH3-?

Which one represents the activation energy?

The following molecule contains the _________ and __________ functional groups.

Using the VSEPR model, predict which species have bond angles of about 109°. HINT: Assume that the charges are correct. Add the missing lone pairs before applying the VSEPR theory!

Acids and Bases

Alkanes and Cycloalkanes

Alkenes and Alkynes

Chirality: the Handedness of Molecules

Haloalkanes

Alcohols, Ethers, and Thiols

Benzene and Its Derivatives

Amines

Infrared and Nuclear Magnetic Resonance Spectroscopy

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions

Organic Polymer Chemistry

Carbohydrates

Amino Acids and Proteins

Lipids

Nucleic Acids

The Organic Chemistry of Metabolism

Filters

According to VSEPR model, what is your prediction for the arrangement of electron pairs for CH₃^-?

The following molecule contains the _ and __ functional groups.