Question 1

Identify compounds 1 and 2 in the reaction scheme below.
CH3CHCH2 + H+/H2O $\rightarrow$ 1 + K2Cr2O7/H+ $\rightarrow$ 2

Accepted Answer

1: 2-propa

Question 2

What is the product of the reaction of 3-hydroxy-3-ethylpentane?

Accepted Answer

A) No reaction occurs. 
B) 3-ethyl-2-pentanone 
C) 3-pentanone 
D) 2-pentanone 
E) 3-ethyl-3-pentanone 
A) No reaction occurs. 
B) 3-ethyl-2-pentanone 
C) 3-pentanone 
D) 2-pentanone 
E) 3-ethyl-3-pentanone

Question 3

The compound 3-bromo-3-ethylpentane likely undergoes nucleophilic substitution by an SN1 reaction.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following can produce esters?

Accepted Answer

A) A primary alcohol plus K2Cr2O7(aq),H2SO4  
B) An alcohol plus an aldehyde 
C) An aldehyde plus KMnO4(aq)in acidic solution 
D) An acid plus an alcohol 
E) An acid plus an aldehyde 
A) A primary alcohol plus K2Cr2O7(aq),H2SO4  
B) An alcohol plus an aldehyde 
C) An aldehyde plus KMnO4(aq)in acidic solution 
D) An acid plus an alcohol 
E) An acid plus an aldehyde

Question 5

Acetic acetyl chloride reacts with methylamine to produce _____________________.

Accepted Answer

The answer of Acetic acetyl chloride reacts with methylamine to...

Question 6

The typical amino acid,NH2CHRCOOH,has pKa1 and pKa2 of 2.4 and 9.8,respectively.What is(are)the major species in an aqueous solution whose pH is 2.5?

Accepted Answer

<sup>+</sup>NH<sub>3

Question 7

What reactants would be used to synthesize the following compound?

Accepted Answer

acetyl chl

Question 8

What reactants would be used to synthesize the following compound?   Choose from the following.

Accepted Answer

The answer of What reactants would be used to synthesize...

Question 9

Fill in the missing reactants and products.

Accepted Answer

The answer of Fill in the missing reactants and products....

Question 10

Which of the following monomers is used to produce Teflon?

Accepted Answer

A) CHClCH2  
B) CF2CF2  
C) CH2CH2  
D) CH(CH3)CH2  
E) CH(CN)CH2  
A) CHClCH2  
B) CF2CF2  
C) CH2CH2  
D) CH(CH3)CH2  
E) CH(CN)CH2

Question 11

How many primary alcohols are there with the formula C4H9OH?

Accepted Answer

A) 4 
B) 3 
C) 5 
D) 1 
E) 2 
A) 4 
B) 3 
C) 5 
D) 1 
E) 2

Question 12

Fill in the missing reactants and products,A,B,C,D.

Accepted Answer

A: BR₂/H@#LAT-DLM&, B: NAOH/H

Question 13

Which of the following would be attacked by an electrophilic reagent?

Accepted Answer

A) 2 and 5 only 
B) 1 and 4 only 
C) 1,2,4,and 5 
D) 3 and 5 
E) 1 And 4 only 
A) 2 and 5 only 
B) 1 and 4 only 
C) 1,2,4,and 5 
D) 3 and 5 
E) 1 And 4 only

Question 14

Complete hydrolysis of a hexapeptide yielded Arg,Tyr,Val,Phe,Cys.After partial hydrolysis,the fragments Tyr-Cys,Arg-Phe,Cys,Val-Arg,and Phe-Tyr were obtained.What are the possible sequences in the hexapeptide?

Accepted Answer

Val-Arg-Phe-Tyr-Cys-

Question 15

The systematic name of CH3CH2CH(CHO)CH3 is

Accepted Answer

A) 2-ethylpropanal. 
B) 2-pentanal. 
C) 3-methylbutanal. 
D) 2-pentanone. 
E) 2-methylbutanal. 
A) 2-ethylpropanal. 
B) 2-pentanal. 
C) 3-methylbutanal. 
D) 2-pentanone. 
E) 2-methylbutanal.

Question 16

Consider the reaction 
CH3(CH2)4CH2CH(Br)CH3 + NaOH $\rightarrow$ CH3(CH2)4CH2CH(OH)CH3
(optically pure enantiomer)
If 2-bromooctane rotates the plane of polarized light to the right while the product rotates the plane of polarized light to the left,which of the following statements is true?

Accepted Answer

A) This is an example of an elimination reaction. 
B) The reaction occurs by an SN2 mechanism. 
C) The reaction occurs by an SN1 mechanism. 
D) This is an example of an addition reaction. 
E) This is an example of an electrophilic substitution. 
A) This is an example of an elimination reaction. 
B) The reaction occurs by an SN2 mechanism. 
C) The reaction occurs by an SN1 mechanism. 
D) This is an example of an addition reaction. 
E) This is an example of an electrophilic substitution.

Question 17

If 2-bromobutane reacts with OH- by an SN1 mechanism,the product is optically active and has the reverse chirality compared to the reactant.

Accepted Answer

A) True 
 B)False

Question 18

There are two isomeric butanals that differ in the position of the carbonyl group.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following polymers are condensation polymers?

Accepted Answer

A) 3 only 
B) 2 and 4 
C) 2 and 3 
D) 4 and 5 
E) 1,3,and 5 
A) 3 only 
B) 2 and 4 
C) 2 and 3 
D) 4 and 5 
E) 1,3,and 5

Question 20

Condensation polymerization involves the use of

Accepted Answer

A) one or two monomers,each with a nitrile group. 
B) one or two monomers with reactive groups at each end of the molecules. 
C) a monomer with a double bond. 
D) a monomer with a triple bond. 
E) one or two monomers,each with one reactive group. 
A) one or two monomers,each with a nitrile group. 
B) one or two monomers with reactive groups at each end of the molecules. 
C) a monomer with a double bond. 
D) a monomer with a triple bond. 
E) one or two monomers,each with one reactive group.

Identify compounds 1 and 2 in the reaction scheme below. CH₃CHCH₂ + H⁺/H₂O $\rightarrow$ 1 + K₂Cr₂O₇/H⁺ $\rightarrow$ 2

What is the product of the reaction of 3-hydroxy-3-ethylpentane?

The compound 3-bromo-3-ethylpentane likely undergoes nucleophilic substitution by an S_N1 reaction.

Which of the following can produce esters?

Acetic acetyl chloride reacts with methylamine to produce _____________________.

The typical amino acid,NH₂CHRCOOH,has pK_a1 and pK_a2 of 2.4 and 9.8,respectively.What is(are)the major species in an aqueous solution whose pH is 2.5?

What reactants would be used to synthesize the following compound?

What reactants would be used to synthesize the following compound? Choose from the following.

Fill in the missing reactants and products.

Which of the following monomers is used to produce Teflon?

How many primary alcohols are there with the formula C₄H₉OH?

Fill in the missing reactants and products,A,B,C,D.

Which of the following would be attacked by an electrophilic reagent?

Complete hydrolysis of a hexapeptide yielded Arg,Tyr,Val,Phe,Cys.After partial hydrolysis,the fragments Tyr-Cys,Arg-Phe,Cys,Val-Arg,and Phe-Tyr were obtained.What are the possible sequences in the hexapeptide?

The systematic name of CH₃CH₂CH(CHO)CH₃ is

If 2-bromobutane reacts with OH^- by an S_N1 mechanism,the product is optically active and has the reverse chirality compared to the reactant.

There are two isomeric butanals that differ in the position of the carbonyl group.

Which of the following polymers are condensation polymers?

Condensation polymerization involves the use of

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Filters

Exam 20: Organic Chemistry II

Identify compounds 1 and 2 in the reaction scheme below. CH3CHCH2 + H+/H2O →\rightarrow→ 1 + K2Cr2O7/H+ →\rightarrow→ 2

What is the product of the reaction of 3-hydroxy-3-ethylpentane?

The compound 3-bromo-3-ethylpentane likely undergoes nucleophilic substitution by an SN1 reaction.

Which of the following can produce esters?

Acetic acetyl chloride reacts with methylamine to produce _____________________.

The typical amino acid,NH2CHRCOOH,has pKa1 and pKa2 of 2.4 and 9.8,respectively.What is(are)the major species in an aqueous solution whose pH is 2.5?

What reactants would be used to synthesize the following compound?

What reactants would be used to synthesize the following compound? Choose from the following.

Fill in the missing reactants and products.

Which of the following monomers is used to produce Teflon?

How many primary alcohols are there with the formula C4H9OH?

Fill in the missing reactants and products,A,B,C,D.

Which of the following would be attacked by an electrophilic reagent?

Complete hydrolysis of a hexapeptide yielded Arg,Tyr,Val,Phe,Cys.After partial hydrolysis,the fragments Tyr-Cys,Arg-Phe,Cys,Val-Arg,and Phe-Tyr were obtained.What are the possible sequences in the hexapeptide?

The systematic name of CH3CH2CH(CHO)CH3 is

Consider the reaction CH3(CH2)4CH2CH(Br)CH3 + NaOH →\rightarrow→ CH3(CH2)4CH2CH(OH)CH3 (optically pure enantiomer) If 2-bromooctane rotates the plane of polarized light to the right while the product rotates the plane of polarized light to the left,which of the following statements is true?

If 2-bromobutane reacts with OH- by an SN1 mechanism,the product is optically active and has the reverse chirality compared to the reactant.

There are two isomeric butanals that differ in the position of the carbonyl group.

Which of the following polymers are condensation polymers?

Condensation polymerization involves the use of

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Filters

Identify compounds 1 and 2 in the reaction scheme below. CH₃CHCH₂ + H⁺/H₂O $\rightarrow$ 1 + K₂Cr₂O₇/H⁺ $\rightarrow$ 2

The compound 3-bromo-3-ethylpentane likely undergoes nucleophilic substitution by an S_N1 reaction.

The typical amino acid,NH₂CHRCOOH,has pK_a1 and pK_a2 of 2.4 and 9.8,respectively.What is(are)the major species in an aqueous solution whose pH is 2.5?

How many primary alcohols are there with the formula C₄H₉OH?

The systematic name of CH₃CH₂CH(CHO)CH₃ is

If 2-bromobutane reacts with OH^- by an S_N1 mechanism,the product is optically active and has the reverse chirality compared to the reactant.