Question 1

How many constitutional isomers are there with the molecular formula C6H14?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  8 
A)  3 
B)  4 
C)  5 
D)  8 C

Question 2

Experiments have shown that for 1,2-dichloroethane, ClCHS1U1B12S1U1B0CHS1U1B12S1U1B0Cl, in tetrachloromethane solution at 25° C, 70% of the molecules are in the anti and 30% are in the gauche conformation. Use this information to answer the following question(s).
-Refer to instructions. Draw a Newman projection of the gauche conformation of 1,2-dichloroethane.

Accepted Answer

The answer of Experiments have shown that for 1,2-dichloroethane, ClCHS1U1B12S1U1B0CHS1U1B12S1U1B0Cl,...

Question 3

4-ethyl-3,3,4-trimethylheptane contains:

Accepted Answer

A)  two quaternary carbon atoms 
B)  two tertiary carbon atoms 
C)  four secondary carbon atoms 
D)  a and c 
E)  all of these 
A)  two quaternary carbon atoms 
B)  two tertiary carbon atoms 
C)  four secondary carbon atoms 
D)  a and c 
E)  all of these D

Question 4

One of the functional group classifications is characterized by the presence of an sp2 hybridized carbon atom. This functional group could be:

Accepted Answer

A)  alkyl halide 
B)  sulfide 
C)  alcohol 
D)  aldehyde 
E)  alkyne 
A)  alkyl halide 
B)  sulfide 
C)  alcohol 
D)  aldehyde 
E)  alkyne

Question 5

Label the following pair of compounds as:

Accepted Answer

A)  identical 
B)  constitutional isomers 
C)  stereoisomers 
D)  unrelated 
A)  identical 
B)  constitutional isomers 
C)  stereoisomers 
D)  unrelated

Question 6

Provide a line bond structure for 5-tert-butyl-2,3-dimethyloctane.

Accepted Answer

The answer of Provide a line bond structure for 5-tert-butyl-2,3-dimethyloctane....

Question 7

Provide the line bond structure for 4-(2,2-dibromoethyl)-3,5-dichloroheptane.

Accepted Answer

The answer of Provide the line bond structure for 4-(2,2-dibromoethyl)-3,5-dichloroheptane....

Question 8

Experiments have shown that for 1,2-dichloroethane, ClCHS1U1B12S1U1B0CHS1U1B12S1U1B0Cl, in tetrachloromethane solution at 25° C, 70% of the molecules are in the anti and 30% are in the gauche conformation. Use this information to answer the following question(s).
-Refer to instructions. Draw a Newman projection of the anti conformation of 1,2-dichloroethane.

Accepted Answer

The answer of Experiments have shown that for 1,2-dichloroethane, ClCHS1U1B12S1U1B0CHS1U1B12S1U1B0Cl,...

Question 9

Circle and name each functional group in the following structure.   cortisone acetate (active ingredient in steroid skin cream)

Accepted Answer

The answer of Circle and name each functional group in...

Question 10

The carbon atoms within the functional group of the following classifications are: alkene ester carboxylic acid amide

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  sp2 and sp3 
A)  sp 
B)  sp2 
C)  sp3 
D)  sp2 and sp3

Question 11

Designate each carbon as primary, secondary, tertiary, or quaternary.

Accepted Answer

The answer of Designate each carbon as primary, secondary, tertiary,...

Question 12

Which of the following Newman projections represents the most stable conformation of 2,3-dimethylbutane? ​
A   B   C   D   ​

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 13

Among the following structures, how many different compounds are represented?

Accepted Answer

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

Question 14

Draw the structure of a five carbon ketone containing one tertiary carbon atom.

Accepted Answer

The answer of Draw the structure of a five carbon...

Question 15

Which hydrogen atom(s) in the following compound is (are) classified as tertiary?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  both a and c 
E)  There are no tertiary hydrogen atoms. 
A)  a 
B)  b 
C)  c 
D)  both a and c 
E)  There are no tertiary hydrogen atoms.

Question 16

Name these groups (left to right).   where   represents the parent chain.

Accepted Answer

A)  sec-propyl, sec-butyl, isobutyl 
B)  isopropyl, isobutyl, sec-butyl 
C)  sec-propyl, tert-butyl, isobutyl 
D)  isopropyl, tert-butyl, isobutyl 
E)  isopropyl, tert-butyl, sec-butyl 
A)  sec-propyl, sec-butyl, isobutyl 
B)  isopropyl, isobutyl, sec-butyl 
C)  sec-propyl, tert-butyl, isobutyl 
D)  isopropyl, tert-butyl, isobutyl 
E)  isopropyl, tert-butyl, sec-butyl

Question 17

Pick the set of terms that correctly classifies the compound.

Accepted Answer

A)  tertiary amine, primary alkyl chloride, secondary alcohol 
B)  primary amine, primary alkyl chloride, secondary alcohol 
C)  primary amine, primary alkyl chloride, tertiary alcohol 
D)  secondary amine, primary alkyl chloride, secondary alcohol 
E)  secondary amine, secondary alkyl chloride, secondary alcohol 
A)  tertiary amine, primary alkyl chloride, secondary alcohol 
B)  primary amine, primary alkyl chloride, secondary alcohol 
C)  primary amine, primary alkyl chloride, tertiary alcohol 
D)  secondary amine, primary alkyl chloride, secondary alcohol 
E)  secondary amine, secondary alkyl chloride, secondary alcohol

Question 18

Which of the following alkanes is the most likely to be a liquid at room temperature?

Accepted Answer

A)  propane 
B)  butane 
C)  pentane 
D)  hexane 
A)  propane 
B)  butane 
C)  pentane 
D)  hexane

Question 19

Which of the following functional group classifications do not contain oxygen?

Accepted Answer

A)  ether 
B)  thiol 
C)  aldehyde 
D)  ester 
E)  amide 
A)  ether 
B)  thiol 
C)  aldehyde 
D)  ester 
E)  amide

Question 20

Which of the following Newman projections does not represent 2-methylhexane? ​
A   B   C   D   ​
​
​

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Exam 3: Organic Compounds: Alkanes and Their Stereochemistry

How many constitutional isomers are there with the molecular formula C6H14?

4-ethyl-3,3,4-trimethylheptane contains:

One of the functional group classifications is characterized by the presence of an sp2 hybridized carbon atom. This functional group could be:

Label the following pair of compounds as:

Provide a line bond structure for 5-tert-butyl-2,3-dimethyloctane.

Provide the line bond structure for 4-(2,2-dibromoethyl)-3,5-dichloroheptane.

Circle and name each functional group in the following structure. cortisone acetate (active ingredient in steroid skin cream)

The carbon atoms within the functional group of the following classifications are: alkene ester carboxylic acid amide

Designate each carbon as primary, secondary, tertiary, or quaternary.

Which of the following Newman projections represents the most stable conformation of 2,3-dimethylbutane? ​ A B C D ​

Among the following structures, how many different compounds are represented?

Draw the structure of a five carbon ketone containing one tertiary carbon atom.

Which hydrogen atom(s) in the following compound is (are) classified as tertiary?

Name these groups (left to right). where represents the parent chain.

Pick the set of terms that correctly classifies the compound.

Which of the following alkanes is the most likely to be a liquid at room temperature?

Which of the following functional group classifications do not contain oxygen?

Which of the following Newman projections does not represent 2-methylhexane? ​ A B C D ​ ​ ​

Structure and Bonding

Polar Covalent Bonds; Acids and Bases

Organic Compounds: Cycloalkanes and Their Stereochemistry

Stereochemistry at Tetrahedral Centers

An Overview of Organic Reactions

Alkenes and Alkynes

Reactions of Alkenes and Alkynes

Aromatic Compounds

Structure Determination: Mass Spectrometry, Infrared Spectroscopy, and Ultraviolet Spectroscopy

Structure Determination: Mass Spectrometry, Infrared Spectroscopy, and Ultraviolet Spectroscopy

Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, and Thiols; Ethers and Sulfides

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Nitriles

Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution and Condensation Reactions

Amines and Heterocycles

Biomolecules: Amino Acids, Peptides, and Proteins

Amino Acid Metabolism

Biomolecules: Carbohydrates

Carbohydrate Metabolism

Biomolecules: Lipids and Their Metabolism

Biomolecules: Nucleic Acids and Their Metabolism

Orbitals and Organic Chemistry: Pericyclic Reactionse

Synthetic Polymerse

Filters

How many constitutional isomers are there with the molecular formula C₆H₁₄?

One of the functional group classifications is characterized by the presence of an sp² hybridized carbon atom. This functional group could be:

Which of the following Newman projections represents the most stable conformation of 2,3-dimethylbutane? A B C D

Which of the following Newman projections does not represent 2-methylhexane? A B C D