Exam 2: Alkanes and Cycloakanes: Introduction to Hydrocarbons

The reaction of acetylene with hydrogen gas is shown below. Which statements are true concerning the reaction? $\mathrm{H}-\mathrm{C} \equiv \mathrm{C}-\mathrm{H}+2 \mathrm{H}_{2} \xrightarrow{\mathrm{Pd} \text { (cat.) }} \mathrm{H}_{3} \mathrm{C}-\mathrm{CH}_{3}$ I. Acetylene is oxidized to ethane. II. Acetylene is reduced to ethane. III. Carbon changes oxidation state from -1 to -3 . IV. Hydrogen (from $\mathrm{H}_{2}$ ) changes oxidation state from 0 to +1 .

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(Multiple Choice)

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Question 1

Correct Answer:

Verified

D

What is the IUPAC name of the following?

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(Multiple Choice)

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Question 2

Correct Answer:

Verified

C

Alkanes are characterized by the general molecular formula:

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Question 3

Correct Answer:

Verified

C

Which of the following are constitutional isomers?

(Multiple Choice)

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Question 4

The $\mathrm{C}-\mathrm{C}$ sigma bond in acetylene is formed by the overlap of which two orbitals? $\mathrm{H}-\mathrm{C} \equiv \mathrm{C}-\mathrm{H}$

(Multiple Choice)

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Question 5

Carbon atoms 1,2 , and 3 in the following structure are classified, respectively, as

(Multiple Choice)

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Question 6

What is the estimated $\mathrm{C}-\mathrm{C}-\mathrm{C}$ bond angle in the following structure? $What is the estimated \mathrm{C}-\mathrm{C}-\mathrm{C} bond angle in the following structure?$

(Multiple Choice)

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Question 7

Arrange the following isomeric alkanes in order of increasing boiling point. I. $n$ -heptane II. 2,3-dimethylpentane III. 2,2,3-trimethylbutane

(Multiple Choice)

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Question 8

Which of the following has(have) a higher oxidation state of carbon than the carbon in formaldehyde, $\mathrm{H}_{2} \mathrm{C}=\mathrm{O}$ ? I. $\mathrm{CH}_{3} \mathrm{OH}$ II. $\mathrm{HCO}_{2} \mathrm{H}$ III. $\mathrm{H}_{2} \mathrm{CO}_{3}$

(Multiple Choice)

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Question 9

The carbon-carbon sigma bond in ethane is formed by overlap of which two orbitals?

(Multiple Choice)

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Question 10

The $\mathrm{sp}^{3}$ orbitals of carbon in $\mathrm{CH}_{4}$ are formed from the

(Multiple Choice)

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Question 11

What is the $\mathrm{Cl}-\mathrm{C}-\mathrm{Cl}$ bond angle in $\mathrm{CCl}_{4}$ ?

(Multiple Choice)

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Question 12

The heats of combustion $\left(-\Delta H^{\circ}\right)$ of heptane and 3,3-dimethypentane are 4,817 and $4,809 \mathrm{~kJ} / \mathrm{mol}$ , respectively. Which statement is true?

(Multiple Choice)

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Question 13

How many moles of $\mathrm{O}_{2}$ gas would be consumed in the complete combustion of 0.100 mole of $\mathrm{C}_{5} \mathrm{H}_{12}$ ?

(Multiple Choice)

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Question 14

Cycloalkanes are characterized by the general molecular formula:

(Multiple Choice)

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Question 15

The carbon-carbon single bond in the following is formed by the overlap of which two orbitals? $\mathrm{H}_{2} \mathrm{C}=\mathrm{CH}-\mathrm{C} \equiv \mathrm{N}$

(Multiple Choice)

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Question 16

What is the relationship between the two structures below?

(Multiple Choice)

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Question 17

What is the IUPAC name of the following structure?

(Multiple Choice)

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Question 18

Exam 2: Alkanes and Cycloakanes: Introduction to Hydrocarbons

What is the IUPAC name of the following?

Alkanes are characterized by the general molecular formula:

Which of the following are constitutional isomers?

The C−C\mathrm{C}-\mathrm{C}C−C sigma bond in acetylene is formed by the overlap of which two orbitals? H−C≡C−H\mathrm{H}-\mathrm{C} \equiv \mathrm{C}-\mathrm{H}H−C≡C−H

Carbon atoms 1,2 , and 3 in the following structure are classified, respectively, as

What is the estimated C−C−C\mathrm{C}-\mathrm{C}-\mathrm{C}C−C−C bond angle in the following structure?

Arrange the following isomeric alkanes in order of increasing boiling point. I. nnn -heptane II. 2,3-dimethylpentane III. 2,2,3-trimethylbutane

Which of the following has(have) a higher oxidation state of carbon than the carbon in formaldehyde, H2C=O\mathrm{H}_{2} \mathrm{C}=\mathrm{O}H2​C=O ? I. CH3OH\mathrm{CH}_{3} \mathrm{OH}CH3​OH II. HCO2H\mathrm{HCO}_{2} \mathrm{H}HCO2​H III. H2CO3\mathrm{H}_{2} \mathrm{CO}_{3}H2​CO3​

The carbon-carbon sigma bond in ethane is formed by overlap of which two orbitals?

The sp3\mathrm{sp}^{3}sp3 orbitals of carbon in CH4\mathrm{CH}_{4}CH4​ are formed from the

What is the Cl−C−Cl\mathrm{Cl}-\mathrm{C}-\mathrm{Cl}Cl−C−Cl bond angle in CCl4\mathrm{CCl}_{4}CCl4​ ?

The heats of combustion (−ΔH∘)\left(-\Delta H^{\circ}\right)(−ΔH∘) of heptane and 3,3-dimethypentane are 4,817 and 4,809 kJ/mol4,809 \mathrm{~kJ} / \mathrm{mol}4,809 kJ/mol , respectively. Which statement is true?

How many moles of O2\mathrm{O}_{2}O2​ gas would be consumed in the complete combustion of 0.100 mole of C5H12\mathrm{C}_{5} \mathrm{H}_{12}C5​H12​ ?

Cycloalkanes are characterized by the general molecular formula:

The carbon-carbon single bond in the following is formed by the overlap of which two orbitals? H2C=CH−C≡N\mathrm{H}_{2} \mathrm{C}=\mathrm{CH}-\mathrm{C} \equiv \mathrm{N}H2​C=CH−C≡N

What is the relationship between the two structures below?

What is the IUPAC name of the following structure?

Structure Determines Properties

Alkanes and Cycloalkanes: Introduction to Stereochemistry

Alcohols and Alkyl Halides: Introduction to Reaction Mechanisms

Structure and Preparation of Alkenes: Elimination Reactions

Addition Reactions of Alkenes

Chirality

Nucleophilic Substitution

Alkynes

Spectroscopy

Organometallic Compounds

Alcohols, Diols, and Thiols

Ethers, Epoxides, and Sulfides

Aldehydes and Ketones: Nucleophilic Addition to the Carbonyl Group

Carboxylic Acids

Acid Derivatives

Enols and Enolates

Amines

Phenols

Carbohydrates

Lipids

Amino Acids, Peptides, and Proteins

Nucleosides, Nucleotides, and Nucleic Acids

Synthetic Polymers

Filters

The $\mathrm{C}-\mathrm{C}$ sigma bond in acetylene is formed by the overlap of which two orbitals? $\mathrm{H}-\mathrm{C} \equiv \mathrm{C}-\mathrm{H}$

What is the estimated $\mathrm{C}-\mathrm{C}-\mathrm{C}$ bond angle in the following structure? $What is the estimated \mathrm{C}-\mathrm{C}-\mathrm{C} bond angle in the following structure?$

Arrange the following isomeric alkanes in order of increasing boiling point. I. $n$ -heptane II. 2,3-dimethylpentane III. 2,2,3-trimethylbutane

Which of the following has(have) a higher oxidation state of carbon than the carbon in formaldehyde, $\mathrm{H}_{2} \mathrm{C}=\mathrm{O}$ ? I. $\mathrm{CH}_{3} \mathrm{OH}$ II. $\mathrm{HCO}_{2} \mathrm{H}$ III. $\mathrm{H}_{2} \mathrm{CO}_{3}$

The $\mathrm{sp}^{3}$ orbitals of carbon in $\mathrm{CH}_{4}$ are formed from the

What is the $\mathrm{Cl}-\mathrm{C}-\mathrm{Cl}$ bond angle in $\mathrm{CCl}_{4}$ ?

The heats of combustion $\left(-\Delta H^{\circ}\right)$ of heptane and 3,3-dimethypentane are 4,817 and $4,809 \mathrm{~kJ} / \mathrm{mol}$ , respectively. Which statement is true?

How many moles of $\mathrm{O}_{2}$ gas would be consumed in the complete combustion of 0.100 mole of $\mathrm{C}_{5} \mathrm{H}_{12}$ ?

The carbon-carbon single bond in the following is formed by the overlap of which two orbitals? $\mathrm{H}_{2} \mathrm{C}=\mathrm{CH}-\mathrm{C} \equiv \mathrm{N}$