Question 1

Using curved arrows show the movement of electrons in the following reaction.

Accepted Answer

The answer of Using curved arrows show the movement of...

Question 2

Which of the following is not an electrophile?

Accepted Answer

A) (H+) 
B) (BF3) 
C) (+NO2) 
D) (Fe+3) 
E) (CH2    CH2) 
A) (H+) 
B) (BF3) 
C) (+NO2) 
D) (Fe+3) 
E) (CH2    CH2) E

Question 3

Which of the following is vinyl chloride?

Accepted Answer

A) CH3CH2Cl 
B) CH2     CHCH2Cl 
C) CH2     CHCl 
D)    
E)    
A) CH3CH2Cl 
B) CH2     CHCH2Cl 
C) CH2     CHCl 
D)    
E)    C

Question 4

Provide the IUPAC name for the alkene shown below.

Accepted Answer

(E)-3,4-di

Question 5

Given an activation energy of 15 kcal/mol,use the Arrhenius equation to estimate how much faster the reaction will occur if the temperature is increased from 100°C to 120°C.R = 1.987 cal/mol ∙ K.

Accepted Answer

The reacti

Question 6

A hydrocarbon with molecular formula C20H34 has what degree of substitution?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 7

Why do reactions tend to proceed at a faster rate as T increases?

Accepted Answer

The number of molecular collis

Question 8

What is the molecular formula of the hydrocarbon that contains 5 carbon atoms,one ring,and one π bond?

Accepted Answer

The answer of What is the molecular formula of the...

Question 9

Name the structure. H2C   CHCH2I

Accepted Answer

A) vinyl iodide 
B) allyl iodide 
C) 1-iodo-2-propene 
D) iodomethylethene 
E) 2-iodo-1-propene 
A) vinyl iodide 
B) allyl iodide 
C) 1-iodo-2-propene 
D) iodomethylethene 
E) 2-iodo-1-propene

Question 10

What is the value of ΔH in kcal/mole for the reaction shown? (CH3)3C-H + Cl-Cl → (CH3)3C-Cl + H-Cl
Bond energies are: (CH3)3C-H = 91 kcal/mole
(CH3)3C-Cl = 78.5 kcal/mole
Cl-Cl = 58 kcal/mole
H-Cl = 103 kcal/mole

Accepted Answer

A) +32.5 
B) -57.5 
C) -32.5 
D) +57.5 
E) -8.5 
A) +32.5 
B) -57.5 
C) -32.5 
D) +57.5 
E) -8.5

Question 11

Name the structure.

Accepted Answer

A) 4-chlorocyclohexene 
B) 1-chloro-3-cyclohexene 
C) 1-chloro-3-cycloheptene 
D) 4-chlorocycloheptane 
E) 4-chlorocycloheptene 
A) 4-chlorocyclohexene 
B) 1-chloro-3-cyclohexene 
C) 1-chloro-3-cycloheptene 
D) 4-chlorocycloheptane 
E) 4-chlorocycloheptene

Question 12

Which of the following statements about ethene,C2H4,is incorrect?

Accepted Answer

A) The H-C-H bond angles are approximately 109.5°. 
B) All of the hydrogen atoms are in the same plane. 
C) There is a total of five sigma bonds. 
D) The carbon atoms are sp2 hybridized. 
E) The H-C-H bond angles are approximately 120°. 
A) The H-C-H bond angles are approximately 109.5°. 
B) All of the hydrogen atoms are in the same plane. 
C) There is a total of five sigma bonds. 
D) The carbon atoms are sp2 hybridized. 
E) The H-C-H bond angles are approximately 120°.

Question 13

Provide an acceptable name for the following compound.

Accepted Answer

1,6-dibrom

Question 14

How many degrees of unsaturation are present in this molecule?

Accepted Answer

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

Question 15

Which of the following is an allylic alcohol?

Accepted Answer

A) CH2     CHCH2OCH3 
B) CH2     CHCH2CH3 
C) HOCH   CHCH2CH3 
D) CH3CH   CHCH2OH 
E) CH2     CHCH2CH2OH 
A) CH2     CHCH2OCH3 
B) CH2     CHCH2CH3 
C) HOCH   CHCH2CH3 
D) CH3CH   CHCH2OH 
E) CH2     CHCH2CH2OH

Question 16

Name the structure.

Accepted Answer

A) (Z)-4,5-dimethyl-4-hepten-1-ol 
B) (
E) -4,5-dimethyl-4-hepten-1-ol 
C) (
E) -3,4-dimethyl-3-hepten-7-ol 
D) (Z)-3,4-dimethyl-3-hepten-7-ol 
E) (
E) -4,5-dimethyl-4-heptenol 
A) (Z)-4,5-dimethyl-4-hepten-1-ol 
B) (
E) -4,5-dimethyl-4-hepten-1-ol 
C) (
E) -3,4-dimethyl-3-hepten-7-ol 
D) (Z)-3,4-dimethyl-3-hepten-7-ol 
E) (
E) -4,5-dimethyl-4-heptenol

Question 17

Name the structure.

Accepted Answer

A) 2-ethyl-1-pentene 
B) 2-propyl-1-butene 
C) 3-methylenehexane 
D) 3-methyl-3-hexene 
E) ethyl propyl ethene 
A) 2-ethyl-1-pentene 
B) 2-propyl-1-butene 
C) 3-methylenehexane 
D) 3-methyl-3-hexene 
E) ethyl propyl ethene

Question 18

What is the IUPAC name for the following compound?

Accepted Answer

A) 2-methyl-1-butene 
B) isopentene 
C) 2-methybutene 
D) 2-ethylpropene 
E) 3-methyl-3-butene 
A) 2-methyl-1-butene 
B) isopentene 
C) 2-methybutene 
D) 2-ethylpropene 
E) 3-methyl-3-butene

Question 19

Draw the structure of (Z)-1-chloro-2-methyl-2-butene.

Accepted Answer

The answer of Draw the structure of (Z)-1-chloro-2-methyl-2-butene....

Question 20

Which of the following correctly describes intermediates and/or transition states?

Accepted Answer

A) Transition states occur at minima on reaction coordinate diagrams. 
B) Both transition states and intermediates occur at maxima on reaction coordinate diagrams. 
C) An intermediate is always produced after the rate-determining step of a reaction mechanism. 
D) Transition states have partially formed bonds whereas intermediates have fully formed bonds. 
E) none of the above 
A) Transition states occur at minima on reaction coordinate diagrams. 
B) Both transition states and intermediates occur at maxima on reaction coordinate diagrams. 
C) An intermediate is always produced after the rate-determining step of a reaction mechanism. 
D) Transition states have partially formed bonds whereas intermediates have fully formed bonds. 
E) none of the above

Exam 5: Alkenes: Structure,nomenclature,and an Introduction to Reactivity - Thermodynamics and Kinetics

Using curved arrows show the movement of electrons in the following reaction.

Which of the following is not an electrophile?

Which of the following is vinyl chloride?

Provide the IUPAC name for the alkene shown below.

Given an activation energy of 15 kcal/mol,use the Arrhenius equation to estimate how much faster the reaction will occur if the temperature is increased from 100°C to 120°C.R = 1.987 cal/mol ∙ K.

A hydrocarbon with molecular formula C20H34 has what degree of substitution?

Why do reactions tend to proceed at a faster rate as T increases?

What is the molecular formula of the hydrocarbon that contains 5 carbon atoms,one ring,and one π bond?

Name the structure. H2C CHCH2I

What is the value of ΔH in kcal/mole for the reaction shown? (CH3)3C-H + Cl-Cl → (CH3)3C-Cl + H-Cl Bond energies are: (CH3)3C-H = 91 kcal/mole (CH3)3C-Cl = 78.5 kcal/mole Cl-Cl = 58 kcal/mole H-Cl = 103 kcal/mole

Name the structure.

Which of the following statements about ethene,C2H4,is incorrect?

Provide an acceptable name for the following compound.

How many degrees of unsaturation are present in this molecule?

Which of the following is an allylic alcohol?

Name the structure.

Name the structure.

What is the IUPAC name for the following compound?

Draw the structure of (Z)-1-chloro-2-methyl-2-butene.

Which of the following correctly describes intermediates and/or transition states?

Remembering General Chemistry: Electronic Structure and Bonding

Acids and Bases: Central to Understanding Organic Chemistry

An Introduction to Organic Compounds: Nomenclature, physical Properties, and Structure

Isomers: the Arrangement of Atoms in Space

The Reactions of Alkenes - the Stereochemistry of Addition Reactions

The Reactions of Alkynes - Introduction to Multistep Synthesis

Delocalized Electrons: Their Effect on Stability, pka, and the Products of a Reaction - Aromaticity and Electronic Effects: an Introduction to the Reactions of Benzene

Substitution and Elimination Reactions of Alkyl Halides

Reactions of Alcohols, ethers, epoxides, amines and Sulfur-Containing Compounds

Organometallic Compounds

Radicals

Mass Spectrometry,infrared Spectroscopy,and Uvvis Spectroscopy

Nmr Spectroscopy

Reactions of Carboxylic Acids and Carboxylic Acid Derivatives

Reactions of Aldehydes and Ketones

Reactions at the Α-Carbon

Reactions of Benzene and Substituted Benzenes

More About Amines - Reactions of Heterocylic Compounds

The Organic Chemistry of Carbohydrates

Amino Acids,peptides,and Proteins

Catalysis in Organic Reactions and in Enzymatic Reactions

The Organic Chemistry of the Coenzymes, compounds Derived From Vitamins

The Organic Chemistry of the Metabolic Pathways

The Organic Chemistry of Lipids

The Chemistry of the Nucleic Acids

Synthetic Polymers

Pericyclic Reactions

Filters

A hydrocarbon with molecular formula C₂₀H₃₄ has what degree of substitution?

Name the structure. H₂C CHCH₂I

What is the value of ΔH in kcal/mole for the reaction shown? (CH₃)₃C-H + Cl-Cl → (CH₃)₃C-Cl + H-Cl Bond energies are: (CH₃)₃C-H = 91 kcal/mole (CH₃)₃C-Cl = 78.5 kcal/mole Cl-Cl = 58 kcal/mole H-Cl = 103 kcal/mole

Which of the following statements about ethene,C₂H₄,is incorrect?