Question 1

Which of the following statements best describes organic chemistry?

Accepted Answer

The study of carbon-containing compounds and their properties.

Question 2

What is the molecular formula for glucose, a common organic compound found in living organisms?

Accepted Answer

$$\mathrm{C_6H_{12}O_6$}$$

Question 3

Which hybridization and geometry is found in the carbon atoms of methane ($$\mathrm{CH_4$}$$)?

Accepted Answer

sp$$^3$$ hybridization, tetrahedral geometry

Question 4

Which type of hydrocarbon contains only single carbon-carbon bonds and is considered saturated?

Accepted Answer

Alkanes

Question 5

What is the correct condensed structural formula for pentane?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_2CH_3}$$

Question 6

Which of the following statements about boiling points of alkanes is correct?

Accepted Answer

Boiling point increases with the length of the carbon chain.

Question 7

What is the geometry and bond angle of a carbon atom with sp$$^2$$ hybridization?

Accepted Answer

Trigonal planar, $$120^{\circ}$$

Question 8

Which of the following is NOT a correct step in naming an organic compound according to IUPAC rules?

Accepted Answer

Ignore the type of compound when assigning the suffix.

Question 9

Which of the following is the correct name for the compound with the condensed formula $$\mathrm{CH_3CH_2CH_2CH_3}$$?

Accepted Answer

Butane

Question 10

Which of the following statements about cycloalkanes is TRUE?

Accepted Answer

Five- and six-membered cycloalkanes are most stable due to minimal angle strain.

Question 11

What is the hybridization and geometry of the carbon atom in ethyne ($$\mathrm{C_2H_2}$$)?

Accepted Answer

sp hybridization, linear geometry

Question 12

Which of the following is a correct example of a substituent in organic nomenclature?

Accepted Answer

Ethyl

Question 13

Which intermolecular force is present in alkanes?

Accepted Answer

London dispersion forces

Question 14

What is the correct IUPAC name for a molecule with a seven-carbon chain and a methyl group attached to the third carbon?

Accepted Answer

3-Methylheptane

Question 15

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

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_2CH_2CH_3}$$

Question 16

Which of the following compounds is aromatic?

Accepted Answer

Benzene

Question 17

Which of the following is a property of saturated hydrocarbons?

Accepted Answer

They contain the maximum number of hydrogen atoms.

Question 18

What is the bond angle in a molecule where the carbon atom is sp hybridized?

Accepted Answer

$$180^{\circ}$$

Question 19

Which of the following is the correct name for a six-membered carbon ring with only single bonds?

Accepted Answer

Cyclohexane

Question 20

Which of the following is a correct statement about the combustion of alkanes?

Accepted Answer

Alkanes combust to give mainly $$\mathrm{CO_2$}$$ and $$\mathrm{H_2O}.$$

Introduction to Organic Chemistry: Structure, Nomenclature, and Hydrocarbons

Study Guide - Practice Questions