Question 1

Which of the following notations represents the polypeptide shown below?

Accepted Answer

A) Gly-Ala-Ser 
B) Gly-Val-Thr 
C) Ser-Ala-Gly 
D) Thr-Val-Gly 
A) Gly-Ala-Ser 
B) Gly-Val-Thr 
C) Ser-Ala-Gly 
D) Thr-Val-Gly

Question 2

What is the product when pure water and ethene are mixed?

Accepted Answer

A) an alcohol 
B) a carboxylic acid 
C) an ether 
D) no reaction occurs 
A) an alcohol 
B) a carboxylic acid 
C) an ether 
D) no reaction occurs

Question 3

In addition to an amine,which functional group do all amino acids contain?

Accepted Answer

A) an alcohol 
B) an amide 
C) a carboxylic acid 
D) an oxyacid 
A) an alcohol 
B) an amide 
C) a carboxylic acid 
D) an oxyacid

Question 4

Identify the functional group:

Accepted Answer

A) alcohol 
B) amine 
C) amide 
D) ester 
A) alcohol 
B) amine 
C) amide 
D) ester

Question 5

Based on the structure of its side chains,the amino acid shown below can be classified as

Accepted Answer

A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar. 
A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar.

Question 6

Based on the structure of its side chains,the amino acid shown below can be classified as

Accepted Answer

A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar. 
A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar.

Question 7

-Which of the compounds shown above is correctly identified by the name 2-Methylbutane?

Accepted Answer

A) All are 2-Methylbutane.all 
B) none 
C) only (1) 
D) only (1)and (4) 
A) All are 2-Methylbutane.all 
B) none 
C) only (1) 
D) only (1)and (4)

Question 8

The major final product of the four stages of catabolism is

Accepted Answer

A) acetyl CoA. 
B) ATP. 
C) CO2. 
D) fatty acids. 
A) acetyl CoA. 
B) ATP. 
C) CO2. 
D) fatty acids.

Question 9

Which compound is not an isomer of the other three?

Accepted Answer

A) cyclohexane 
B) 1,2-dimethylcyclobutane 
C) 1,2-dimethylcyclopropane 
D) methylcyclopentane 
A) cyclohexane 
B) 1,2-dimethylcyclobutane 
C) 1,2-dimethylcyclopropane 
D) methylcyclopentane

Question 10

What compound is formed by the oxidation of 2-butanol?

Accepted Answer

A) butanal 
B) butanoic acid 
C) 2-butanone 
D) 2-butene 
A) butanal 
B) butanoic acid 
C) 2-butanone 
D) 2-butene

Question 11

The H-C-H bond angles in acetic acid,shown below,are closest to
O

CH3C-OH

Accepted Answer

A) 90°. 
B) 109.5°. 
C) 120°. 
D) 180°. 
A) 90°. 
B) 109.5°. 
C) 120°. 
D) 180°.

Question 12

Shown are ball-and-stick (1)and space-filling (2)models of ethylene.  
-What hybrid orbitals are used by carbon to form covalent bonds with hydrogen?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp3d 
A) sp 
B) sp2 
C) sp3 
D) sp3d

Question 13

How many grams of Ca(OH)2 are needed to neutralize 5.00 g of 3-methylbutanoic acid?

Accepted Answer

A) 1)81 g 
B) 2)10 g 
C) 3)63 g 
D) 4)20 g 
A) 1)81 g 
B) 2)10 g 
C) 3)63 g 
D) 4)20 g

Question 14

Which name is not correct?

Accepted Answer

A) 1,2-dichloropentane 
B) 2,3-dimethylbutane 
C) 2-ethylbutane 
D) 4-propylheptane 
A) 1,2-dichloropentane 
B) 2,3-dimethylbutane 
C) 2-ethylbutane 
D) 4-propylheptane

Question 15

What type of hybridization does a carbon atom have in a six-membered aromatic ring?

Accepted Answer

A) sp 
B) sp2 
C) sp3 
D) sp3d 
A) sp 
B) sp2 
C) sp3 
D) sp3d

Question 16

Based on the structure of its side chains,the amino acid shown below can be classified as

Accepted Answer

A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar. 
A) acidic. 
B) basic. 
C) neutral,non-polar. 
D) neutral,polar.

Question 17

Which one of the following amino acids does not contain a basic side chain?

Accepted Answer

A) arginine 
B) histidine 
C) lysine 
D) threonine 
A) arginine 
B) histidine 
C) lysine 
D) threonine

Question 18

Naturally occurring organic molecules that dissolve in nonpolar solvents are called ________ of which the most plentiful in nature are ________ and ________.

Accepted Answer

lipids,ani

Question 19

What does the term "alpha" amino acid mean?

Accepted Answer

A) The amino group attaches to the carbon in the carboxyl group. 
B) The amino group attaches to the carbon next to the carboxylic acid group. 
C) The amino acid contains only one carbon atom. 
D) The amino acid contains only one carboxylic acid group. 
A) The amino group attaches to the carbon in the carboxyl group. 
B) The amino group attaches to the carbon next to the carboxylic acid group. 
C) The amino acid contains only one carbon atom. 
D) The amino acid contains only one carboxylic acid group.

Question 20

What is the name of the following structure?

Accepted Answer

A) cis-1-ethyl-2-chloroethane 
B) cis-1-chloro-1-butene 
C) trans-1-chloro-1-butene 
D) trans-1-chloro-2-ethylethane 
A) cis-1-ethyl-2-chloroethane 
B) cis-1-chloro-1-butene 
C) trans-1-chloro-1-butene 
D) trans-1-chloro-2-ethylethane

Exam 23: Organic and Biological Chemistry

Which of the following notations represents the polypeptide shown below?

What is the product when pure water and ethene are mixed?

In addition to an amine,which functional group do all amino acids contain?

Identify the functional group:

Based on the structure of its side chains,the amino acid shown below can be classified as

Based on the structure of its side chains,the amino acid shown below can be classified as

-Which of the compounds shown above is correctly identified by the name 2-Methylbutane?

The major final product of the four stages of catabolism is

Which compound is not an isomer of the other three?

What compound is formed by the oxidation of 2-butanol?

The H-C-H bond angles in acetic acid,shown below,are closest to O  CH3C-OH

Shown are ball-and-stick (1)and space-filling (2)models of ethylene. -What hybrid orbitals are used by carbon to form covalent bonds with hydrogen?

How many grams of Ca(OH)2 are needed to neutralize 5.00 g of 3-methylbutanoic acid?

Which name is not correct?

What type of hybridization does a carbon atom have in a six-membered aromatic ring?

Based on the structure of its side chains,the amino acid shown below can be classified as

Which one of the following amino acids does not contain a basic side chain?

Naturally occurring organic molecules that dissolve in nonpolar solvents are called ________ of which the most plentiful in nature are ________ and ________.

What does the term "alpha" amino acid mean?

What is the name of the following structure?

Chemistry: Matter and Measurement

Atoms, molecules, and Ions

Formulas, equations, and Moles

Reactions in Aqueous Solutions

Periodicity and the Atomic Structure of Atoms

Ionic Bonds and Some Main-Group Chemistry

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Transition Elements and Coordination Chemistry

Metals and Solid-State Materials

Nuclear Chemistry

Filters

The H-C-H bond angles in acetic acid,shown below,are closest to O  CH₃C-OH

How many grams of Ca(OH)₂ are needed to neutralize 5.00 g of 3-methylbutanoic acid?

Naturally occurring organic molecules that dissolve in nonpolar solvents are called of which the most plentiful in nature are and .