Question 1

Which of the following compounds is considered an organic compound?

Accepted Answer

CH4

Question 2

What is the general molecular formula for a straight-chain alkane?

Accepted Answer

$C_nH_{2n+2}$

Question 3

Which functional group is present in all carboxylic acids?

Accepted Answer

$-COOH$

Question 4

Which of the following best describes a cycloalkane?

Accepted Answer

A hydrocarbon with only single bonds that forms a ring

Question 5

What is the IUPAC name for the following structure: $CH_3CH_2CH_2CH_3$?

Accepted Answer

Butane

Question 6

Which of the following statements about aromatic compounds is TRUE?

Accepted Answer

They have electrons delocalized throughout the ring

Question 7

Which of the following is a structural isomer of isopropyl alcohol ($C_3H_8O$)?

Accepted Answer

n-propyl alcohol

Question 8

A molecule with the formula $C_4H_{10}$ could be:

Accepted Answer

Butane

Question 9

Which of the following best describes a chiral center?

Accepted Answer

A carbon atom bonded to four different substituents

Question 10

Which of the following fatty acids would be easiest to break down (digest) in the human body?

Accepted Answer

Linoleic acid ($C_{18}H_{32}O_2$)

Question 11

Which of the following is the correct condensed structural formula for hexane?

Accepted Answer

$CH_3(CH_2)_4CH_3$

Question 12

Which of the following best describes a trans isomer?

Accepted Answer

Substituents are on opposite sides of a double bond

Question 13

What is the correct IUPAC name for the following compound: $CH_3CH_2CHBrCH(CH_3)CH_3$?

Accepted Answer

3-bromo-2-methylpentane

Question 14

Which functional group is present in all esters?

Accepted Answer

$-COOR$

Question 15

Which of the following best describes a conformational isomer?

Accepted Answer

Isomers that differ by rotation around a single bond

Question 16

Which of the following is a property of saturated hydrocarbons?

Accepted Answer

They are nonpolar and hydrophobic

Question 17

Which of the following best describes an enantiomer?

Accepted Answer

Non-superimposable mirror images

Question 18

Which of the following is the correct molecular formula for cyclopentane?

Accepted Answer

$C_5H_{10}$

Question 19

Which of the following best describes the difference between an alkene and an alkyne?

Accepted Answer

An alkene contains a double bond, while an alkyne contains a triple bond

Question 20

Which of the following is the correct IUPAC name for the compound with the following structure: (skeletal structure with a five-carbon chain and a methyl group on the second and third carbons)?

Accepted Answer

2,3-dimethylpentane

Introduction to Organic Compounds: Structure, Nomenclature, and Isomerism

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